Update from Gnulib by running admin/merge-gnulib

* admin/merge-gnulib (AVOIDED_MODULES): Avoid gnulib-i18n. * lib/stdlib.c, m4/selinux-selinux-h.m4: New files, taken from Gnulib.
2025-12-06 06:20:55 -08:00 · 2024-12-17 14:02:41 -08:00 · 2024-12-17 14:02:41 -08:00 · b1e5f6d6ef
commit b1e5f6d6ef
parent 22806c65f4
172 changed files with 1541 additions and 667 deletions
--- a/admin/merge-gnulib
+++ b/admin/merge-gnulib
@ -53,7 +53,7 @@ GNULIB_MODULES='
 '
 AVOIDED_MODULES='
-  access btowc chmod close crypto/af_alg dup fchdir fstat
+  access btowc chmod close crypto/af_alg dup fchdir fstat gnulib-i18n
  iswblank iswctype iswdigit iswxdigit langinfo libgmp-mpq
  localename-unsafe-limited lock
  mbrtowc mbsinit memchr mkdir msvc-inval msvc-nothrow nl_langinfo
--- a/build-aux/install-sh
+++ b/build-aux/install-sh
@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
-scriptversion=2024-06-19.01; # UTC
+scriptversion=2024-12-03.03; # UTC
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@ -533,7 +533,7 @@ do
 done
 # Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp nil t)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
 # time-stamp-time-zone: "UTC0"
--- a/lib/acl-internal.c
+++ b/lib/acl-internal.c
@ -19,10 +19,12 @@
 #include <config.h>
-#include "acl.h"
+/* Specification.  */
-
+#define ACL_INTERNAL_INLINE _GL_EXTERN_INLINE
 #include "acl-internal.h"
 #include "acl.h"
 #if defined __CYGWIN__
 # include <sys/types.h>
 # include <grp.h>
--- a/lib/acl.h
+++ b/lib/acl.h
@ -32,9 +32,68 @@
 extern "C" {
 #endif
 /* file_has_acl flags guaranteed to not collide with any <dirent.h>
   DT_* or _GL_DT_* value.  */
 enum
  {
    /* Get scontext information as well.  */
    ACL_GET_SCONTEXT = 0x10000,
    /* Follow symlinks.  */
    ACL_SYMLINK_FOLLOW = 0x20000,
  };
 /* Information about an ACL.  */
 struct aclinfo
 {
  /* If 'size' is nonnegative, a buffer holding the concatenation
     of extended attribute names, each terminated by NUL
     (either u.__gl_acl_ch, or heap-allocated).  */
  char *buf;
  /* The number of useful bytes at the start of buf, counting trailing NULs.
     If negative, there was an error in getting the ACL info,
     and u.err is the corresponding errno.  */
  ssize_t size;
  /* Security context string.  Do not modify its contents.  */
  char *scontext;
  /* Security context errno value.  It is zero if there was no
     error getting the security context.  When nonzero, scontext is "?".  */
  int scontext_err;
  union
  {
    /* An errno value, when there was an error getting the ACL info.  */
    int err;
    /* A small array of char, big enough for most listxattr results.
       The size is somewhat arbitrary; it equals the max length of a
       trivial NFSv4 ACL (a size used by file-has-acl.c in 2023-2024
       but no longer relevant now), and a different value might be
       better once experience is gained.  For internal use only.  */
    char __gl_acl_ch[152];
  } u;
 };
 bool acl_errno_valid (int) _GL_ATTRIBUTE_CONST;
 int file_has_acl (char const *, struct stat const *);
 int file_has_aclinfo (char const *restrict, struct aclinfo *restrict, int);
 #if HAVE_LINUX_XATTR_H && HAVE_LISTXATTR
 bool aclinfo_has_xattr (struct aclinfo const *, char const *)
  _GL_ATTRIBUTE_PURE;
 void aclinfo_free (struct aclinfo *);
 #else
 # define aclinfo_has_xattr(ai, xattr) false
 # define aclinfo_free(ai) ((void) 0)
 #endif
 #if (HAVE_LINUX_XATTR_H && HAVE_LISTXATTR \
     && (HAVE_SMACK || USE_SELINUX_SELINUX_H))
 void aclinfo_scontext_free (char *);
 #else
 # define aclinfo_scontext_free(s) ((void) 0)
 #endif
 int qset_acl (char const *, int, mode_t);
 int xset_acl (char const *, int, mode_t);
--- a/lib/dirent.in.h
+++ b/lib/dirent.in.h
@ -46,20 +46,95 @@ struct dirent
  char d_type;
  char d_name[1];
 };
 /* Possible values for 'd_type'.  */
 #  define DT_UNKNOWN 0
 #  define DT_FIFO    1          /* FIFO */
 #  define DT_CHR     2          /* character device */
 #  define DT_DIR     4          /* directory */
 #  define DT_BLK     6          /* block device */
 #  define DT_REG     8          /* regular file */
 #  define DT_LNK    10          /* symbolic link */
 #  define DT_SOCK   12          /* socket */
 #  define DT_WHT    14          /* whiteout */
 #  define GNULIB_defined_struct_dirent 1
 # endif
 #endif
 /* 'd_type' macros specified in GNU, i.e., POSIX.1-2024 plus DT_WHT,
   but not (yet) DT_MQ, DT_SEM, DT_SHM, DT_TMO.
   These macros can be useful even on platforms that do not support
   d_type or the corresponding file types.
   The values of these macros are all in the 'unsigned char' range.
   Default to the Linux values which are also popular elsewhere,
   and check that all macros have distinct values.  */
 #ifndef DT_UNKNOWN
 # define DT_UNKNOWN 0
 #endif
 #ifndef DT_FIFO
 # define DT_FIFO  1 /* FIFO */
 #endif
 #ifndef DT_CHR
 # define DT_CHR   2 /* character device */
 #endif
 #ifndef DT_DIR
 # define DT_DIR   4 /* directory */
 #endif
 #ifndef DT_BLK
 # define DT_BLK   6 /* block device */
 #endif
 #ifndef DT_REG
 # define DT_REG   8 /* regular file */
 #endif
 #ifndef DT_LNK
 # define DT_LNK  10 /* symbolic link */
 #endif
 #ifndef DT_SOCK
 # define DT_SOCK 12 /* socket */
 #endif
 #ifndef DT_WHT
 # define DT_WHT  14 /* whiteout */
 #endif
 static_assert (DT_UNKNOWN != DT_FIFO && DT_UNKNOWN != DT_CHR
               && DT_UNKNOWN != DT_BLK && DT_UNKNOWN != DT_REG
               && DT_UNKNOWN != DT_LNK && DT_UNKNOWN != DT_SOCK
               && DT_UNKNOWN != DT_WHT
               && DT_FIFO != DT_CHR && DT_FIFO != DT_BLK && DT_FIFO != DT_REG
               && DT_FIFO != DT_LNK && DT_FIFO != DT_SOCK && DT_FIFO != DT_WHT
               && DT_CHR != DT_BLK && DT_CHR != DT_REG && DT_CHR != DT_LNK
               && DT_CHR != DT_SOCK && DT_CHR != DT_WHT
               && DT_BLK != DT_REG && DT_BLK != DT_LNK && DT_BLK != DT_SOCK
               && DT_BLK != DT_WHT
               && DT_REG != DT_LNK && DT_REG != DT_SOCK && DT_REG != DT_WHT
               && DT_LNK != DT_SOCK && DT_LNK != DT_WHT
               && DT_SOCK != DT_WHT);
 /* Other optional information about a directory entry.  */
 #define _GL_DT_NOTDIR 0x100   /* Not a directory */
 /* Conversion between S_IF* and DT_* file types.  */
 #if ! (defined IFTODT && defined DTTOIF)
 # include <sys/stat.h>
 # ifdef S_ISWHT
 #  define _GL_DIRENT_S_ISWHT(mode) S_ISWHT(mode)
 # else
 #  define _GL_DIRENT_S_ISWHT(mode) 0
 # endif
 # ifdef S_IFWHT
 #  define _GL_DIRENT_S_IFWHT S_IFWHT
 # else
 #  define _GL_DIRENT_S_IFWHT (DT_WHT << 12) /* just a guess */
 # endif
 #endif
 /* Conversion from a 'stat' mode to a DT_* value.  */
 #ifndef IFTODT
 # define IFTODT(mode) \
   (S_ISREG (mode) ? DT_REG : S_ISDIR (mode) ? DT_DIR \
    : S_ISLNK (mode) ? DT_LNK : S_ISBLK (mode) ? DT_BLK \
    : S_ISCHR (mode) ? DT_CHR : S_ISFIFO (mode) ? DT_FIFO \
    : S_ISSOCK (mode) ? DT_SOCK \
    : _GL_DIRENT_S_ISWHT (mode) ? DT_WHT : DT_UNKNOWN)
 #endif
 /* Conversion from a DT_* value to a 'stat' mode.  */
 #ifndef DTTOIF
 # define DTTOIF(dirtype) \
   ((dirtype) == DT_REG ? S_IFREG : (dirtype) == DT_DIR ? S_IFDIR \
    : (dirtype) == DT_LNK ? S_IFLNK : (dirtype) == DT_BLK ? S_IFBLK \
    : (dirtype) == DT_CHR ? S_IFCHR :  dirtype == DT_FIFO ? S_IFIFO \
    : (dirtype) == DT_SOCK ? S_IFSOCK \
    : (dirtype) == DT_WHT ? _GL_DIRENT_S_IFWHT \
    : (dirtype) << 12 /* just a guess */)
 #endif
 #if !@DIR_HAS_FD_MEMBER@
 # if !GNULIB_defined_DIR
 /* struct gl_directory is a type with a field 'int fd_to_close'.
--- a/lib/file-has-acl.c
+++ b/lib/file-has-acl.c
@ -27,12 +27,30 @@
 #include "acl.h"
 #include <dirent.h>
 #include <limits.h>
 #include "acl-internal.h"
 #include "attribute.h"
 #include "minmax.h"
-#if USE_ACL && HAVE_LINUX_XATTR_H && HAVE_LISTXATTR
+/* Check the assumption that UCHAR_MAX < INT_MAX.  */
 static_assert (ACL_SYMLINK_FOLLOW & ~ (unsigned char) -1);
 static char const UNKNOWN_SECURITY_CONTEXT[] = "?";
 #if HAVE_LINUX_XATTR_H && HAVE_LISTXATTR
 # define USE_LINUX_XATTR true
 #else
 # define USE_LINUX_XATTR false
 #endif
 #if USE_LINUX_XATTR
 # if USE_SELINUX_SELINUX_H
 #  include <selinux/selinux.h>
 # endif
 # include <stdckdint.h>
 # include <stdint.h>
 # include <string.h>
 # include <arpa/inet.h>
 # include <sys/xattr.h>
@ -47,26 +65,186 @@
 #  define XATTR_NAME_POSIX_ACL_DEFAULT "system.posix_acl_default"
 # endif
 # ifdef HAVE_SMACK
 #  include <sys/smack.h>
 # else
 static char const *
 smack_smackfs_path (void)
 {
  return NULL;
 }
 static ssize_t
 smack_new_label_from_path (MAYBE_UNUSED const char *path,
                           MAYBE_UNUSED const char *xattr,
                           MAYBE_UNUSED int follow, MAYBE_UNUSED char **label)
 {
  return -1;
 }
 # endif
 static bool
 is_smack_enabled (void)
 {
 return !!smack_smackfs_path ();
 }
 enum {
  /* ACE4_ACCESS_ALLOWED_ACE_TYPE = 0x00000000, */
  ACE4_ACCESS_DENIED_ACE_TYPE  = 0x00000001,
  ACE4_IDENTIFIER_GROUP        = 0x00000040
 };
-/* Return true if ATTR is in the set represented by the NUL-terminated
+/* Does AI's xattr set contain XATTR?  */
   strings in LISTBUF, which is of size LISTSIZE.  */
-ATTRIBUTE_PURE static bool
+bool
-have_xattr (char const *attr, char const *listbuf, ssize_t listsize)
+aclinfo_has_xattr (struct aclinfo const *ai, char const *xattr)
 {
-  char const *blim = listbuf + listsize;
+  if (0 < ai->size)
-  for (char const *b = listbuf; b < blim; b += strlen (b) + 1)
+    {
-    for (char const *a = attr; *a == *b; a++, b++)
+      char const *blim = ai->buf + ai->size;
      for (char const *b = ai->buf; b < blim; b += strlen (b) + 1)
        for (char const *a = xattr; *a == *b; a++, b++)
          if (!*a)
            return true;
    }
  return false;
 }
 /* Get attributes of the file NAME into AI, if USE_ACL.
   If FLAGS & ACL_GET_SCONTEXT, also get security context.
   If FLAGS & ACL_SYMLINK_FOLLOW, follow symbolic links.  */
 static void
 get_aclinfo (char const *name, struct aclinfo *ai, int flags)
 {
  int scontext_err = ENOTSUP;
  ai->buf = ai->u.__gl_acl_ch;
  ssize_t acl_alloc = sizeof ai->u.__gl_acl_ch;
  if (! (USE_ACL || flags & ACL_GET_SCONTEXT))
    ai->size = 0;
  else
    {
      ssize_t (*lsxattr) (char const *, char *, size_t)
        = (flags & ACL_SYMLINK_FOLLOW ? listxattr : llistxattr);
      while (true)
        {
          ai->size = lsxattr (name, ai->buf, acl_alloc);
          if (0 < ai->size)
            break;
          ai->u.err = ai->size < 0 ? errno : 0;
          if (! (ai->size < 0 && ai->u.err == ERANGE && acl_alloc < SSIZE_MAX))
            break;
          /* The buffer was too small.  Find how large it should have been.  */
          ssize_t size = lsxattr (name, NULL, 0);
          if (size <= 0)
            {
              ai->size = size;
              ai->u.err = size < 0 ? errno : 0;
              break;
            }
          /* Grow allocation to at least 'size'.  Grow it by a nontrivial
             amount, to defend against denial of service by an adversary
             that fiddles with ACLs.  */
          if (ai->buf != ai->u.__gl_acl_ch)
            {
              free (ai->buf);
              ai->buf = ai->u.__gl_acl_ch;
            }
          if (ckd_add (&acl_alloc, acl_alloc, acl_alloc >> 1))
            acl_alloc = SSIZE_MAX;
          if (acl_alloc < size)
            acl_alloc = size;
          if (SIZE_MAX < acl_alloc)
            {
              ai->u.err = ENOMEM;
              break;
            }
          char *newbuf = malloc (acl_alloc);
          if (!newbuf)
            {
              ai->u.err = errno;
              break;
            }
          ai->buf = newbuf;
        }
    }
  if (0 < ai->size && flags & ACL_GET_SCONTEXT)
    {
      if (is_smack_enabled ())
        {
          if (aclinfo_has_xattr (ai, XATTR_NAME_SMACK))
            {
              ssize_t r = smack_new_label_from_path (name, "security.SMACK64",
                                                     flags & ACL_SYMLINK_FOLLOW,
                                                     &ai->scontext);
              scontext_err = r < 0 ? errno : 0;
            }
        }
      else
        {
 # if USE_SELINUX_SELINUX_H
          if (aclinfo_has_xattr (ai, XATTR_NAME_SELINUX))
            {
              ssize_t r =
                ((flags & ACL_SYMLINK_FOLLOW ? getfilecon : lgetfilecon)
                 (name, &ai->scontext));
              scontext_err = r < 0 ? errno : 0;
 #  ifndef SE_SELINUX_INLINE
              /* Gnulib's selinux-h module is not in use, so getfilecon and
                 lgetfilecon can misbehave, be it via an old version of
                 libselinux where these would return 0 and set the result
                 context to NULL, or via a modern kernel+lib operating on a
                 file from a disk whose attributes were set by a kernel from
                 around 2006.  In that latter case, the functions return a
                 length of 10 for the "unlabeled" context.  Map both failures
                 to a return value of -1, and set errno to ENOTSUP in the
                 first case, and ENODATA in the latter.  */
              if (r == 0)
                scontext_err = ENOTSUP;
              if (r == 10 && memcmp (ai->scontext, "unlabeled", 10) == 0)
                {
                  freecon (ai->scontext);
                  scontext_err = ENODATA;
                }
 #  endif
            }
 # endif
        }
    }
  ai->scontext_err = scontext_err;
  if (scontext_err)
    ai->scontext = (char *) UNKNOWN_SECURITY_CONTEXT;
 }
 # ifndef aclinfo_scontext_free
 /* Free the pointer that file_has_aclinfo put into scontext.
   However, do nothing if the argument is a null pointer;
   This lets the caller replace the scontext member with a null pointer if it
   is willing to own the member and call this function later.  */
 void
 aclinfo_scontext_free (char *scontext)
 {
  if (scontext != UNKNOWN_SECURITY_CONTEXT)
    {
      if (is_smack_enabled ())
        free (scontext);
      else if (scontext)
        freecon (scontext);
    }
 }
 # endif
 /* Free AI's heap storage.  */
 void
 aclinfo_free (struct aclinfo *ai)
 {
  if (ai->buf != ai->u.__gl_acl_ch)
    free (ai->buf);
  aclinfo_scontext_free (ai->scontext);
 }
 /* Return 1 if given ACL in XDR format is non-trivial, 0 if it is trivial.
   -1 upon failure to determine it.  Possibly change errno.  Assume that
   the ACL is valid, except avoid undefined behavior even if invalid.
@ -150,131 +328,98 @@ acl_nfs4_nontrivial (uint32_t *xattr, ssize_t nbytes)
   0 if ACLs are not supported, or if NAME has no or only a base ACL,
   and -1 (setting errno) on error.  Note callers can determine
   if ACLs are not supported as errno is set in that case also.
-   SB must be set to the stat buffer of NAME,
+   Set *AI to ACL info regardless of return value.
-   obtained through stat() or lstat().  */
+   FLAGS should be a <dirent.h> d_type value, optionally ORed with
-
+     - _GL_DT_NOTDIR if it is known that NAME is not a directory,
     - ACL_GET_SCONTEXT to retrieve security context and return 1 if present,
     - ACL_SYMLINK_FOLLOW to follow the link if NAME is a symbolic link;
       otherwise do not follow them if possible.
   If the d_type value is not known, use DT_UNKNOWN though this may be less
   efficient.  */
 int
-file_has_acl (char const *name, struct stat const *sb)
+file_has_aclinfo (MAYBE_UNUSED char const *restrict name,
-{
+                  struct aclinfo *restrict ai, int flags)
 #if USE_ACL
  if (! S_ISLNK (sb->st_mode))
 {
  MAYBE_UNUSED unsigned char d_type = flags & UCHAR_MAX;
-# if HAVE_LINUX_XATTR_H && HAVE_LISTXATTR
+#if USE_LINUX_XATTR
  int initial_errno = errno;
  get_aclinfo (name, ai, flags);
-      /* The max length of a trivial NFSv4 ACL is 6 words for owner,
+  if (ai->size <= 0)
         6 for group, 7 for everyone, all times 2 because there are
         both allow and deny ACEs.  There are 6 words for owner
         because of type, flag, mask, wholen, "OWNER@"+pad and
         similarly for group; everyone is another word to hold
         "EVERYONE@".  */
      typedef uint32_t trivial_NFSv4_xattr_buf[2 * (6 + 6 + 7)];
      /* A buffer large enough to hold any trivial NFSv4 ACL,
         and also useful as a small array of char.  */
      union {
        trivial_NFSv4_xattr_buf xattr;
        char ch[sizeof (trivial_NFSv4_xattr_buf)];
      } stackbuf;
      char *listbuf = stackbuf.ch;
      ssize_t listbufsize = sizeof stackbuf.ch;
      char *heapbuf = NULL;
      ssize_t listsize;
      /* Use listxattr first, as this means just one syscall in the
         typical case where the file lacks an ACL.  Try stackbuf
         first, falling back on malloc if stackbuf is too small.  */
      while ((listsize = listxattr (name, listbuf, listbufsize)) < 0
             && errno == ERANGE)
    {
-          free (heapbuf);
+      errno = ai->size < 0 ? ai->u.err : initial_errno;
-          ssize_t newsize = listxattr (name, NULL, 0);
+      return ai->size;
          if (newsize <= 0)
            return newsize;
          /* Grow LISTBUFSIZE to at least NEWSIZE.  Grow it by a
             nontrivial amount too, to defend against denial of
             service by an adversary that fiddles with ACLs.  */
          bool overflow = ckd_add (&listbufsize, listbufsize, listbufsize >> 1);
          listbufsize = MAX (listbufsize, newsize);
          if (overflow || SIZE_MAX < listbufsize)
            {
              errno = ENOMEM;
              return -1;
            }
          listbuf = heapbuf = malloc (listbufsize);
          if (!listbuf)
            return -1;
    }
  /* In Fedora 39, a file can have both NFSv4 and POSIX ACLs,
     but if it has an NFSv4 ACL that's the one that matters.
     In earlier Fedora the two types of ACLs were mutually exclusive.
     Attempt to work correctly on both kinds of systems.  */
      bool nfsv4_acl
        = 0 < listsize && have_xattr (XATTR_NAME_NFSV4_ACL, listbuf, listsize);
      int ret
        = (listsize <= 0 ? listsize
           : (nfsv4_acl
              || have_xattr (XATTR_NAME_POSIX_ACL_ACCESS, listbuf, listsize)
              || (S_ISDIR (sb->st_mode)
                  && have_xattr (XATTR_NAME_POSIX_ACL_DEFAULT,
                                 listbuf, listsize))));
      free (heapbuf);
-      /* If there is an NFSv4 ACL, follow up with a getxattr syscall
+  if (!aclinfo_has_xattr (ai, XATTR_NAME_NFSV4_ACL))
-         to see whether the NFSv4 ACL is nontrivial.  */
+    return
-      if (nfsv4_acl)
+      (aclinfo_has_xattr (ai, XATTR_NAME_POSIX_ACL_ACCESS)
-        {
+       || ((d_type == DT_DIR || d_type == DT_UNKNOWN)
-          ret = getxattr (name, XATTR_NAME_NFSV4_ACL,
+           && aclinfo_has_xattr (ai, XATTR_NAME_POSIX_ACL_DEFAULT)));
-                          stackbuf.xattr, sizeof stackbuf.xattr);
+
  /* A buffer large enough to hold any trivial NFSv4 ACL.
     The max length of a trivial NFSv4 ACL is 6 words for owner,
     6 for group, 7 for everyone, all times 2 because there are both
     allow and deny ACEs.  There are 6 words for owner because of
     type, flag, mask, wholen, "OWNER@"+pad and similarly for group;
     everyone is another word to hold "EVERYONE@".  */
  uint32_t buf[2 * (6 + 6 + 7)];
  int ret = ((flags & ACL_SYMLINK_FOLLOW ? getxattr : lgetxattr)
             (name, XATTR_NAME_NFSV4_ACL, buf, sizeof buf));
  if (ret < 0)
    switch (errno)
      {
      case ENODATA: return 0;
      case ERANGE : return 1; /* ACL must be nontrivial.  */
      default: return - acl_errno_valid (errno);
      }
-          else
+
            {
  /* It looks like a trivial ACL, but investigate further.  */
-              ret = acl_nfs4_nontrivial (stackbuf.xattr, ret);
+  ret = acl_nfs4_nontrivial (buf, ret);
-              if (ret < 0)
+  errno = ret < 0 ? EINVAL : initial_errno;
  return ret;
 #else /* !USE_LINUX_XATTR */
  ai->buf = ai->u.__gl_acl_ch;
  ai->size = -1;
  ai->u.err = ENOTSUP;
  ai->scontext = (char *) UNKNOWN_SECURITY_CONTEXT;
  ai->scontext_err = ENOTSUP;
 # if USE_ACL
 #  if HAVE_ACL_GET_FILE
  {
                  errno = EINVAL;
                  return ret;
                }
              errno = initial_errno;
            }
        }
      if (ret < 0)
        return - acl_errno_valid (errno);
      return ret;
 # elif HAVE_ACL_GET_FILE
    /* POSIX 1003.1e (draft 17 -- abandoned) specific version.  */
-      /* Linux, FreeBSD, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
+    /* Linux, FreeBSD, NetBSD >= 10, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
    int ret;
-      if (HAVE_ACL_EXTENDED_FILE) /* Linux */
+#   if HAVE_ACL_EXTENDED_FILE /* Linux */
        {
      /* On Linux, acl_extended_file is an optimized function: It only
         makes two calls to getxattr(), one for ACL_TYPE_ACCESS, one for
         ACL_TYPE_DEFAULT.  */
-          ret = acl_extended_file (name);
+    ret = ((flags & ACL_SYMLINK_FOLLOW
-        }
+            ? acl_extended_file
-      else /* FreeBSD, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
+            : acl_extended_file_nofollow)
-        {
+           (name));
-#  if HAVE_ACL_TYPE_EXTENDED /* Mac OS X */
+#   elif HAVE_ACL_TYPE_EXTENDED /* Mac OS X */
    /* On Mac OS X, acl_get_file (name, ACL_TYPE_ACCESS)
       and acl_get_file (name, ACL_TYPE_DEFAULT)
       always return NULL / EINVAL.  There is no point in making
       these two useless calls.  The real ACL is retrieved through
       acl_get_file (name, ACL_TYPE_EXTENDED).  */
-          acl_t acl = acl_get_file (name, ACL_TYPE_EXTENDED);
+    acl_t acl = ((flags & ACL_SYMLINK_FOLLOW
                  ? acl_get_file
                  : acl_get_link_np)
                 (name, ACL_TYPE_EXTENDED));
    if (acl)
      {
        ret = acl_extended_nontrivial (acl);
@ -282,29 +427,36 @@ file_has_acl (char const *name, struct stat const *sb)
      }
    else
      ret = -1;
-#  else /* FreeBSD, IRIX, Tru64, Cygwin >= 2.5 */
+#   else /* FreeBSD, NetBSD >= 10, IRIX, Tru64, Cygwin >= 2.5 */
-          acl_t acl = acl_get_file (name, ACL_TYPE_ACCESS);
+    acl_t (*acl_get_file_or_link) (char const *, acl_type_t) = acl_get_file;
 #    if HAVE_ACL_GET_LINK_NP /* FreeBSD, NetBSD >= 10 */
    if (! (flags & ACL_SYMLINK_FOLLOW))
      acl_get_file_or_link = acl_get_link_np;
 #    endif
    acl_t acl = acl_get_file_or_link (name, ACL_TYPE_ACCESS);
    if (acl)
      {
              int saved_errno;
        ret = acl_access_nontrivial (acl);
-              saved_errno = errno;
+        int saved_errno = errno;
        acl_free (acl);
        errno = saved_errno;
 #    if HAVE_ACL_FREE_TEXT /* Tru64 */
        /* On OSF/1, acl_get_file (name, ACL_TYPE_DEFAULT) always
           returns NULL with errno not set.  There is no point in
           making this call.  */
-#   else /* FreeBSD, IRIX, Cygwin >= 2.5 */
+#    else /* FreeBSD, NetBSD >= 10, IRIX, Cygwin >= 2.5 */
-              /* On Linux, FreeBSD, IRIX, acl_get_file (name, ACL_TYPE_ACCESS)
+        /* On Linux, FreeBSD, NetBSD, IRIX,
               acl_get_file (name, ACL_TYPE_ACCESS)
           and acl_get_file (name, ACL_TYPE_DEFAULT) on a directory
           either both succeed or both fail; it depends on the
           file system.  Therefore there is no point in making the second
           call if the first one already failed.  */
-              if (ret == 0 && S_ISDIR (sb->st_mode))
+        if (ret == 0
            && (d_type == DT_DIR
                || (d_type == DT_UNKNOWN && !(flags & _GL_DT_NOTDIR))))
          {
-                  acl = acl_get_file (name, ACL_TYPE_DEFAULT);
+            acl = acl_get_file_or_link (name, ACL_TYPE_DEFAULT);
            if (acl)
              {
 #     ifdef __CYGWIN__ /* Cygwin >= 2.5 */
@ -318,21 +470,34 @@ file_has_acl (char const *name, struct stat const *sb)
 #     endif
              }
            else
              {
                ret = -1;
 #     ifdef __CYGWIN__ /* Cygwin >= 2.5 */
                if (d_type == DT_UNKNOWN)
                  ret = 0;
 #     endif
              }
          }
 #    endif
      }
    else
      ret = -1;
 #   endif
    return ret < 0 ? - acl_errno_valid (errno) : ret;
  }
      if (ret < 0)
        return - acl_errno_valid (errno);
      return ret;
-# elif HAVE_FACL && defined GETACL /* Solaris, Cygwin < 2.5, not HP-UX */
+#  else /* !HAVE_ACL_GET_FILE */
-#  if defined ACL_NO_TRIVIAL
+  /* The remaining APIs always follow symlinks and operate on
     platforms where symlinks do not have ACLs, so skip the APIs if
     NAME is known to be a symlink.  */
  if (d_type != DT_LNK)
    {
 #   if HAVE_FACL && defined GETACL /* Solaris, Cygwin < 2.5, not HP-UX */
 #    ifdef ACL_NO_TRIVIAL
      /* Solaris 10 (newer version), which has additional API declared in
         <sys/acl.h> (acl_t) and implemented in libsec (acl_set, acl_trivial,
@ -374,10 +539,7 @@ file_has_acl (char const *name, struct stat const *sb)
                entries = malloced =
                  (aclent_t *) malloc (alloc * sizeof (aclent_t));
                if (entries == NULL)
                  {
                    errno = ENOMEM;
                  return -1;
                  }
                continue;
              }
            break;
@ -447,10 +609,7 @@ file_has_acl (char const *name, struct stat const *sb)
                alloc = 2 * alloc; /* <= alloc_max */
                entries = malloced = (ace_t *) malloc (alloc * sizeof (ace_t));
                if (entries == NULL)
                  {
                    errno = ENOMEM;
                  return -1;
                  }
                continue;
              }
            break;
@ -604,11 +763,8 @@ file_has_acl (char const *name, struct stat const *sb)
            free (acl);
          acl = malloc (aclsize);
          if (acl == NULL)
            {
              errno = ENOMEM;
            return -1;
        }
        }
      if (type.u64 == ACL_AIXC)
        {
@ -675,10 +831,29 @@ file_has_acl (char const *name, struct stat const *sb)
            return acl_nontrivial (count, entries);
          }
      }
 #   endif
    }
 #  endif
 # endif
 #endif
  return 0;
 }
 /* Return 1 if NAME has a nontrivial access control list,
   0 if ACLs are not supported, or if NAME has no or only a base ACL,
   and -1 (setting errno) on error.  Note callers can determine
   if ACLs are not supported as errno is set in that case also.
   SB must be set to the stat buffer of NAME,
   obtained through stat() or lstat().  */
 int
 file_has_acl (char const *name, struct stat const *sb)
 {
  int flags = IFTODT (sb->st_mode);
  if (!S_ISDIR (sb->st_mode))
    flags |= _GL_DT_NOTDIR;
  struct aclinfo ai;
  int r = file_has_aclinfo (name, &ai, flags);
  aclinfo_free (&ai);
  return r;
 }
--- a/lib/getopt-cdefs.in.h
+++ b/lib/getopt-cdefs.in.h
@ -46,10 +46,14 @@
 # endif
 #endif
 #if defined __clang__
  /* clang really only groks GNU C 4.2, regardless of its value of __GNUC__.  */
 # undef __GNUC_PREREQ
 # define __GNUC_PREREQ(maj, min) ((maj) < 4 + ((min) <= 2))
 #endif
 #ifndef __GNUC_PREREQ
-# if defined __GNUC__ && defined __GNUC_VERSION__
+# if defined __GNUC__ && defined __GNUC_MINOR__
-# define __GNUC_PREREQ(maj, min) \
+#  define __GNUC_PREREQ(maj, min) ((maj) < __GNUC__ + ((min) <= __GNUC_MINOR__))
        ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
 # else
 #  define __GNUC_PREREQ(maj, min) 0
 # endif
--- a/lib/getopt-pfx-core.h
+++ b/lib/getopt-pfx-core.h
@ -31,6 +31,13 @@
   functions and variables.  Renaming avoids problems with some
   compilers and linkers.  */
 #ifdef __GETOPT_PREFIX
 /* Include platform-dependent header files that may declare getopt() and
   friends.  */
 # if defined _AIX || defined __hpux || defined __sun || defined __QNX__
 #  include <stdio.h>
 # endif
 # ifndef __GETOPT_ID
 #  define __GETOPT_CONCAT(x, y) x ## y
 #  define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
--- a/lib/getopt.c
+++ b/lib/getopt.c
@ -42,7 +42,7 @@
 # define funlockfile(fp) _IO_funlockfile (fp)
 #else
 # include "gettext.h"
-# define _(msgid) gettext (msgid)
+# define _(msgid) dgettext ("gnulib", msgid)
 /* When used standalone, flockfile and funlockfile might not be
   available.  */
 # if (!defined _POSIX_THREAD_SAFE_FUNCTIONS \
@ -732,7 +732,7 @@ _getopt_internal (int argc, char **argv, const char *optstring,
  NAME (int argc, char *const *argv, const char *optstring)	\
  {								\
    return _getopt_internal (argc, (char **)argv, optstring,	\
-			     0, 0, 0, POSIXLY_CORRECT);		\
+			     NULL, NULL, 0, POSIXLY_CORRECT);	\
  }
 #ifdef _LIBC
--- a/lib/gettext.h
+++ b/lib/gettext.h
@ -1,6 +1,5 @@
 /* Convenience header for conditional use of GNU <libintl.h>.
-   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2024 Free Software
+   Copyright (C) 1995-2024 Free Software Foundation, Inc.
   Foundation, Inc.
   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
@ -18,6 +17,7 @@
 #ifndef _LIBGETTEXT_H
 #define _LIBGETTEXT_H 1
 /* NLS can be disabled through the configure --disable-nls option
   or through "#define ENABLE NLS 0" before including this file.  */
 #if defined ENABLE_NLS && ENABLE_NLS
@ -93,12 +93,14 @@
 #endif
 /* Prefer gnulib's setlocale override over libintl's setlocale override.  */
 #ifdef GNULIB_defined_setlocale
 # undef setlocale
 # define setlocale rpl_setlocale
 #endif
 /* A pseudo function call that serves as a marker for the automated
   extraction of messages, but does not call gettext().  The run-time
   translation is done at a different place in the code.
@ -108,6 +110,7 @@
   initializer for static 'char[]' or 'const char[]' variables.  */
 #define gettext_noop(String) String
 /* The separator between msgctxt and msgid in a .mo file.  */
 #define GETTEXT_CONTEXT_GLUE "\004"
@ -115,6 +118,9 @@
   MSGID.  MSGCTXT and MSGID must be string literals.  MSGCTXT should be
   short and rarely need to change.
   The letter 'p' stands for 'particular' or 'special'.  */
 #include <locale.h> /* for LC_MESSAGES */
 #ifdef DEFAULT_TEXT_DOMAIN
 # define pgettext(Msgctxt, Msgid) \
   pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
@ -178,11 +184,12 @@ npgettext_aux (const char *domain,
    return translation;
 }
 /* The same thing extended for non-constant arguments.  Here MSGCTXT and MSGID
   can be arbitrary expressions.  But for string literals these macros are
   less efficient than those above.  */
-#include <string.h>
+#include <string.h> /* for memcpy */
 /* GNULIB_NO_VLA can be defined to disable use of VLAs even if supported.
   This relates to the -Wvla and -Wvla-larger-than warnings, enabled in
@ -199,7 +206,7 @@ npgettext_aux (const char *domain,
 #endif
 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
-#include <stdlib.h>
+# include <stdlib.h> /* for malloc, free */
 #endif
 #define pgettext_expr(Msgctxt, Msgid) \
@ -297,4 +304,5 @@ dcnpgettext_expr (const char *domain,
  return (n == 1 ? msgid : msgid_plural);
 }
 #endif /* _LIBGETTEXT_H */
--- a/lib/gnulib.mk.in
+++ b/lib/gnulib.mk.in
@ -42,6 +42,7 @@
 #  --avoid=dup \
 #  --avoid=fchdir \
 #  --avoid=fstat \
 #  --avoid=gnulib-i18n \
 #  --avoid=iswblank \
 #  --avoid=iswctype \
 #  --avoid=iswdigit \
@ -80,6 +81,7 @@
 #  alloca-opt \
 #  binary-io \
 #  boot-time \
 #  builtin-expect \
 #  byteswap \
 #  c-ctype \
 #  c-strcase \
@ -261,7 +263,6 @@ DYNLIB_OBJ = @DYNLIB_OBJ@
 ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EMACSRES = @EMACSRES@
 EMACS_MANIFEST = @EMACS_MANIFEST@
 EMULTIHOP_HIDDEN = @EMULTIHOP_HIDDEN@
@ -336,6 +337,7 @@ GL_COND_OBJ_PTHREAD_SIGMASK_CONDITION = @GL_COND_OBJ_PTHREAD_SIGMASK_CONDITION@
 GL_COND_OBJ_RAWMEMCHR_CONDITION = @GL_COND_OBJ_RAWMEMCHR_CONDITION@
 GL_COND_OBJ_READLINKAT_CONDITION = @GL_COND_OBJ_READLINKAT_CONDITION@
 GL_COND_OBJ_READLINK_CONDITION = @GL_COND_OBJ_READLINK_CONDITION@
 GL_COND_OBJ_REALLOC_POSIX_CONDITION = @GL_COND_OBJ_REALLOC_POSIX_CONDITION@
 GL_COND_OBJ_REGEX_CONDITION = @GL_COND_OBJ_REGEX_CONDITION@
 GL_COND_OBJ_SIG2STR_CONDITION = @GL_COND_OBJ_SIG2STR_CONDITION@
 GL_COND_OBJ_SIGDESCR_NP_CONDITION = @GL_COND_OBJ_SIGDESCR_NP_CONDITION@
@ -584,7 +586,6 @@ GL_GNULIB_READDIR = @GL_GNULIB_READDIR@
 GL_GNULIB_READLINK = @GL_GNULIB_READLINK@
 GL_GNULIB_READLINKAT = @GL_GNULIB_READLINKAT@
 GL_GNULIB_REALLOCARRAY = @GL_GNULIB_REALLOCARRAY@
 GL_GNULIB_REALLOC_GNU = @GL_GNULIB_REALLOC_GNU@
 GL_GNULIB_REALLOC_POSIX = @GL_GNULIB_REALLOC_POSIX@
 GL_GNULIB_REALPATH = @GL_GNULIB_REALPATH@
 GL_GNULIB_REMOVE = @GL_GNULIB_REMOVE@
@ -707,7 +708,6 @@ GNUSTEP_CFLAGS = @GNUSTEP_CFLAGS@
 GNU_OBJC_CFLAGS = @GNU_OBJC_CFLAGS@
 GOBJECT_CFLAGS = @GOBJECT_CFLAGS@
 GOBJECT_LIBS = @GOBJECT_LIBS@
 GREP = @GREP@
 GSETTINGS_CFLAGS = @GSETTINGS_CFLAGS@
 GSETTINGS_LIBS = @GSETTINGS_LIBS@
 GTK_CFLAGS = @GTK_CFLAGS@
@ -1031,6 +1031,7 @@ LIB_MATH = @LIB_MATH@
 LIB_NANOSLEEP = @LIB_NANOSLEEP@
 LIB_PTHREAD = @LIB_PTHREAD@
 LIB_PTHREAD_SIGMASK = @LIB_PTHREAD_SIGMASK@
 LIB_SELINUX = @LIB_SELINUX@
 LIB_TIMER_TIME = @LIB_TIMER_TIME@
 LIB_WSOCK32 = @LIB_WSOCK32@
 LIB_XATTR = @LIB_XATTR@
@ -1277,7 +1278,6 @@ REPLACE_READDIR = @REPLACE_READDIR@
 REPLACE_READLINK = @REPLACE_READLINK@
 REPLACE_READLINKAT = @REPLACE_READLINKAT@
 REPLACE_REALLOCARRAY = @REPLACE_REALLOCARRAY@
 REPLACE_REALLOC_FOR_REALLOC_GNU = @REPLACE_REALLOC_FOR_REALLOC_GNU@
 REPLACE_REALLOC_FOR_REALLOC_POSIX = @REPLACE_REALLOC_FOR_REALLOC_POSIX@
 REPLACE_REALPATH = @REPLACE_REALPATH@
 REPLACE_REMOVE = @REPLACE_REMOVE@
@ -1384,6 +1384,7 @@ UNISTD_H_HAVE_SYS_RANDOM_H = @UNISTD_H_HAVE_SYS_RANDOM_H@
 UNISTD_H_HAVE_WINSOCK2_H = @UNISTD_H_HAVE_WINSOCK2_H@
 UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS = @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
 USE_ACL = @USE_ACL@
 USE_SELINUX_SELINUX_H = @USE_SELINUX_SELINUX_H@
 USE_STARTUP_NOTIFICATION = @USE_STARTUP_NOTIFICATION@
 VMLIMIT_OBJ = @VMLIMIT_OBJ@
 W32_LIBS = @W32_LIBS@
@ -1470,16 +1471,13 @@ gl_GNULIB_ENABLED_260941c0e5dc67ec9e87d1fb321c300b_CONDITION = @gl_GNULIB_ENABLE
 gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31_CONDITION = @gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31_CONDITION@
 gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c_CONDITION = @gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c_CONDITION@
 gl_GNULIB_ENABLED_61bcaca76b3e6f9ae55d57a1c3193bc4_CONDITION = @gl_GNULIB_ENABLED_61bcaca76b3e6f9ae55d57a1c3193bc4_CONDITION@
 gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec_CONDITION = @gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec_CONDITION@
 gl_GNULIB_ENABLED_8444034ea779b88768865bb60b4fb8c9_CONDITION = @gl_GNULIB_ENABLED_8444034ea779b88768865bb60b4fb8c9_CONDITION@
 gl_GNULIB_ENABLED_925677f0343de64b89a9f0c790b4104c_CONDITION = @gl_GNULIB_ENABLED_925677f0343de64b89a9f0c790b4104c_CONDITION@
 gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1_CONDITION = @gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1_CONDITION@
 gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36_CONDITION = @gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36_CONDITION@
 gl_GNULIB_ENABLED_cloexec_CONDITION = @gl_GNULIB_ENABLED_cloexec_CONDITION@
 gl_GNULIB_ENABLED_d3b2383720ee0e541357aa2aac598e2b_CONDITION = @gl_GNULIB_ENABLED_d3b2383720ee0e541357aa2aac598e2b_CONDITION@
 gl_GNULIB_ENABLED_dirfd_CONDITION = @gl_GNULIB_ENABLED_dirfd_CONDITION@
 gl_GNULIB_ENABLED_e80bf6f757095d2e5fc94dafb8f8fc8b_CONDITION = @gl_GNULIB_ENABLED_e80bf6f757095d2e5fc94dafb8f8fc8b_CONDITION@
 gl_GNULIB_ENABLED_ef455225c00f5049c808c2eda3e76866_CONDITION = @gl_GNULIB_ENABLED_ef455225c00f5049c808c2eda3e76866_CONDITION@
 gl_GNULIB_ENABLED_endian_CONDITION = @gl_GNULIB_ENABLED_endian_CONDITION@
 gl_GNULIB_ENABLED_euidaccess_CONDITION = @gl_GNULIB_ENABLED_euidaccess_CONDITION@
 gl_GNULIB_ENABLED_fd38c7e463b54744b77b98aeafb4fa7c_CONDITION = @gl_GNULIB_ENABLED_fd38c7e463b54744b77b98aeafb4fa7c_CONDITION@
@ -2694,9 +2692,7 @@ endif
 ## begin gnulib module malloc-posix
 ifeq (,$(OMIT_GNULIB_MODULE_malloc-posix))
 ifneq (,$(gl_GNULIB_ENABLED_ef455225c00f5049c808c2eda3e76866_CONDITION))
 endif
 EXTRA_DIST += malloc.c
 EXTRA_libgnu_a_SOURCES += malloc.c
@ -2925,29 +2921,15 @@ EXTRA_libgnu_a_SOURCES += at-func.c
 endif
 ## end   gnulib module readlinkat
 ## begin gnulib module realloc-gnu
 ifeq (,$(OMIT_GNULIB_MODULE_realloc-gnu))
 ifneq (,$(gl_GNULIB_ENABLED_d3b2383720ee0e541357aa2aac598e2b_CONDITION))
 endif
 EXTRA_DIST += realloc.c
 EXTRA_libgnu_a_SOURCES += realloc.c
 endif
 ## end   gnulib module realloc-gnu
 ## begin gnulib module realloc-posix
 ifeq (,$(OMIT_GNULIB_MODULE_realloc-posix))
 ifneq (,$(gl_GNULIB_ENABLED_61bcaca76b3e6f9ae55d57a1c3193bc4_CONDITION))
 ifneq (,$(GL_COND_OBJ_REALLOC_POSIX_CONDITION))
 libgnu_a_SOURCES += realloc.c
 endif
 endif
 EXTRA_DIST += realloc.c
 EXTRA_libgnu_a_SOURCES += realloc.c
 endif
 ## end   gnulib module realloc-posix
@ -3459,9 +3441,8 @@ endif
 ifeq (,$(OMIT_GNULIB_MODULE_stdlib))
 BUILT_SOURCES += stdlib.h
 libgnu_a_SOURCES += stdlib.c
 # We need the following in order to create <stdlib.h> when the system
 # doesn't have one that works with the given compiler.
 stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
  $(_NORETURN_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	$(gl_V_at)$(SED_HEADER_STDOUT) \
@ -3500,7 +3481,6 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
 	      -e 's/@''GNULIB_RAND''@/$(GL_GNULIB_RAND)/g' \
 	      -e 's/@''GNULIB_RANDOM''@/$(GL_GNULIB_RANDOM)/g' \
 	      -e 's/@''GNULIB_RANDOM_R''@/$(GL_GNULIB_RANDOM_R)/g' \
 	      -e 's/@''GNULIB_REALLOC_GNU''@/$(GL_GNULIB_REALLOC_GNU)/g' \
 	      -e 's/@''GNULIB_REALLOC_POSIX''@/$(GL_GNULIB_REALLOC_POSIX)/g' \
 	      -e 's/@''GNULIB_REALLOCARRAY''@/$(GL_GNULIB_REALLOCARRAY)/g' \
 	      -e 's/@''GNULIB_REALPATH''@/$(GL_GNULIB_REALPATH)/g' \
@ -3602,7 +3582,6 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
 	      -e 's|@''REPLACE_RAND''@|$(REPLACE_RAND)|g' \
 	      -e 's|@''REPLACE_RANDOM''@|$(REPLACE_RANDOM)|g' \
 	      -e 's|@''REPLACE_RANDOM_R''@|$(REPLACE_RANDOM_R)|g' \
 	      -e 's|@''REPLACE_REALLOC_FOR_REALLOC_GNU''@|$(REPLACE_REALLOC_FOR_REALLOC_GNU)|g' \
 	      -e 's|@''REPLACE_REALLOC_FOR_REALLOC_POSIX''@|$(REPLACE_REALLOC_FOR_REALLOC_POSIX)|g' \
 	      -e 's|@''REPLACE_REALLOCARRAY''@|$(REPLACE_REALLOCARRAY)|g' \
 	      -e 's|@''REPLACE_REALPATH''@|$(REPLACE_REALPATH)|g' \
@ -4446,17 +4425,6 @@ EXTRA_DIST += vla.h
 endif
 ## end   gnulib module vla
 ## begin gnulib module xalloc-oversized
 ifeq (,$(OMIT_GNULIB_MODULE_xalloc-oversized))
 ifneq (,$(gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec_CONDITION))
 endif
 EXTRA_DIST += xalloc-oversized.h
 endif
 ## end   gnulib module xalloc-oversized
 mostlyclean-local: mostlyclean-generic
 	@for dir in '' $(MOSTLYCLEANDIRS); do \
--- a/lib/malloc.c
+++ b/lib/malloc.c
@ -17,28 +17,33 @@
 /* written by Jim Meyering and Bruno Haible */
 /* Ensure that we call the system's malloc() below.  */
 #define _GL_USE_STDLIB_ALLOC 1
 #include <config.h>
 #include <stdlib.h>
 #include <errno.h>
-
+#include <stdckdint.h>
 #include "xalloc-oversized.h"
 /* Allocate an N-byte block of memory from the heap, even if N is 0.  */
 void *
 rpl_malloc (size_t n)
 {
 #if !HAVE_MALLOC_0_NONNULL
  if (n == 0)
    n = 1;
 #endif
-  if (xalloc_oversized (n, 1))
+#if !HAVE_MALLOC_PTRDIFF
  ptrdiff_t signed_n;
  if (ckd_add (&signed_n, n, 0))
    {
      errno = ENOMEM;
      return NULL;
    }
 #endif
  void *result = malloc (n);
--- a/lib/md5-stream.c
+++ b/lib/md5-stream.c
@ -22,9 +22,6 @@
 #include <config.h>
 /* Specification.  */
 #if HAVE_OPENSSL_MD5
 # define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
 #endif
 #include "md5.h"
 #include <stdlib.h>
--- a/lib/md5.h
+++ b/lib/md5.h
@ -52,10 +52,14 @@
 #define MD5_DIGEST_SIZE 16
 #define MD5_BLOCK_SIZE 64
 #if defined __clang__
  /* clang really only groks GNU C 4.2, regardless of its value of __GNUC__.  */
 # undef __GNUC_PREREQ
 # define __GNUC_PREREQ(maj, min) ((maj) < 4 + ((min) <= 2))
 #endif
 #ifndef __GNUC_PREREQ
 # if defined __GNUC__ && defined __GNUC_MINOR__
-#  define __GNUC_PREREQ(maj, min)                                       \
+#  define __GNUC_PREREQ(maj, min) ((maj) < __GNUC__ + ((min) <= __GNUC_MINOR__))
  ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
 # else
 #  define __GNUC_PREREQ(maj, min) 0
 # endif
--- a/lib/memset_explicit.c
+++ b/lib/memset_explicit.c
@ -27,6 +27,9 @@ memset_explicit (void *s, int c, size_t len)
 #if HAVE_EXPLICIT_MEMSET
  return explicit_memset (s, c, len);
 #elif HAVE_MEMSET_S
 # if !HAVE_MEMSET_S_SUPPORTS_ZERO
  if (len > 0)
 # endif
    (void) memset_s (s, len, c, len);
  return s;
 #elif defined __GNUC__ && !defined __clang__
--- a/lib/mini-gmp.c
+++ b/lib/mini-gmp.c
@ -2706,6 +2706,66 @@ mpn_gcd_11 (mp_limb_t u, mp_limb_t v)
  return u << shift;
 }
 mp_size_t
 mpn_gcd (mp_ptr rp, mp_ptr up, mp_size_t un, mp_ptr vp, mp_size_t vn)
 {
  assert (un >= vn);
  assert (vn > 0);
  assert (!GMP_MPN_OVERLAP_P (up, un, vp, vn));
  assert (vp[vn-1] > 0);
  assert ((up[0] | vp[0]) & 1);
  if (un > vn)
    mpn_div_qr (NULL, up, un, vp, vn);
  un = mpn_normalized_size (up, vn);
  if (un == 0)
    {
      mpn_copyi (rp, vp, vn);
      return vn;
    }
  if (!(vp[0] & 1))
    MPN_PTR_SWAP (up, un, vp, vn);
  while (un > 1 || vn > 1)
    {
      int shift;
      assert (vp[0] & 1);
      while (up[0] == 0)
 	{
 	  up++;
 	  un--;
 	}
      gmp_ctz (shift, up[0]);
      if (shift > 0)
 	{
 	  gmp_assert_nocarry (mpn_rshift(up, up, un, shift));
 	  un -= (up[un-1] == 0);
 	}
      if (un < vn)
 	MPN_PTR_SWAP (up, un, vp, vn);
      else if (un == vn)
 	{
 	  int c = mpn_cmp (up, vp, un);
 	  if (c == 0)
 	    {
 	      mpn_copyi (rp, up, un);
 	      return un;
 	    }
 	  else if (c < 0)
 	    MP_PTR_SWAP (up, vp);
 	}
      gmp_assert_nocarry (mpn_sub (up, up, un, vp, vn));
      un = mpn_normalized_size (up, un);
    }
  rp[0] = mpn_gcd_11 (up[0], vp[0]);
  return 1;
 }
 unsigned long
 mpz_gcd_ui (mpz_t g, const mpz_t u, unsigned long v)
 {
@ -2765,42 +2825,11 @@ mpz_gcd (mpz_t g, const mpz_t u, const mpz_t v)
  if (tu->_mp_size < tv->_mp_size)
    mpz_swap (tu, tv);
-  mpz_tdiv_r (tu, tu, tv);
+  tu->_mp_size = mpn_gcd (tu->_mp_d, tu->_mp_d, tu->_mp_size, tv->_mp_d, tv->_mp_size);
-  if (tu->_mp_size == 0)
+  mpz_mul_2exp (g, tu, gz);
    {
      mpz_swap (g, tv);
    }
  else
    for (;;)
      {
 	int c;
 	mpz_make_odd (tu);
 	c = mpz_cmp (tu, tv);
 	if (c == 0)
 	  {
 	    mpz_swap (g, tu);
 	    break;
 	  }
 	if (c < 0)
 	  mpz_swap (tu, tv);
 	if (tv->_mp_size == 1)
 	  {
 	    mp_limb_t *gp;
 	    mpz_tdiv_r (tu, tu, tv);
 	    gp = MPZ_REALLOC (g, 1); /* gp = mpz_limbs_modify (g, 1); */
 	    *gp = mpn_gcd_11 (tu->_mp_d[0], tv->_mp_d[0]);
 	    g->_mp_size = *gp != 0; /* mpz_limbs_finish (g, 1); */
 	    break;
 	  }
 	mpz_sub (tu, tu, tv);
      }
  mpz_clear (tu);
  mpz_clear (tv);
  mpz_mul_2exp (g, g, gz);
 }
 void
--- a/lib/mini-gmp.h
+++ b/lib/mini-gmp.h
@ -105,6 +105,7 @@ void mpn_mul_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t);
 void mpn_sqr (mp_ptr, mp_srcptr, mp_size_t);
 int mpn_perfect_square_p (mp_srcptr, mp_size_t);
 mp_size_t mpn_sqrtrem (mp_ptr, mp_ptr, mp_srcptr, mp_size_t);
 mp_size_t mpn_gcd (mp_ptr, mp_ptr, mp_size_t, mp_ptr, mp_size_t);
 mp_limb_t mpn_lshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int);
 mp_limb_t mpn_rshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int);
--- a/lib/mktime-internal.h
+++ b/lib/mktime-internal.h
@ -71,9 +71,8 @@ typedef int mktime_offset_t;
 #endif
 /* Subroutine of mktime.  Return the time_t representation of TP and
-   normalize TP, given that a struct tm * maps to a time_t as performed
+   normalize TP, given that a struct tm * maps to a time_t.  If
-   by FUNC.  Record next guess for localtime-gmtime offset in *OFFSET.  */
+   LOCAL, the mapping is performed by localtime_r, otherwise by gmtime_r.
-extern __time64_t __mktime_internal (struct tm *tp,
+   Record next guess for localtime-gmtime offset in *OFFSET.  */
-                                     struct tm *(*func) (__time64_t const *,
+extern __time64_t __mktime_internal (struct tm *tp, bool local,
                                                         struct tm *),
                                     mktime_offset_t *offset) attribute_hidden;
--- a/lib/mktime.c
+++ b/lib/mktime.c
@ -51,7 +51,6 @@
 #include <string.h>
 #include <intprops.h>
 #include <verify.h>
 #ifndef NEED_MKTIME_INTERNAL
 # define NEED_MKTIME_INTERNAL 0
@ -124,7 +123,7 @@ typedef long int long_int;
 # else
 typedef long long int long_int;
 # endif
-verify (INT_MAX <= TYPE_MAXIMUM (long_int) / 4 / 366 / 24 / 60 / 60);
+static_assert (INT_MAX <= TYPE_MAXIMUM (long_int) / 4 / 366 / 24 / 60 / 60);
 /* Shift A right by B bits portably, by dividing A by 2**B and
   truncating towards minus infinity.  B should be in the range 0 <= B
@ -157,7 +156,7 @@ static long_int const mktime_max
 # define EPOCH_YEAR 1970
 # define TM_YEAR_BASE 1900
-verify (TM_YEAR_BASE % 100 == 0);
+static_assert (TM_YEAR_BASE % 100 == 0);
 /* Is YEAR + TM_YEAR_BASE a leap year?  */
 static bool
@ -206,7 +205,7 @@ static long_int
 ydhms_diff (long_int year1, long_int yday1, int hour1, int min1, int sec1,
 	    int year0, int yday0, int hour0, int min0, int sec0)
 {
-  verify (-1 / 2 == 0);
+  static_assert (-1 / 2 == 0);
  /* Compute intervening leap days correctly even if year is negative.
     Take care to avoid integer overflow here.  */
@ -251,29 +250,33 @@ tm_diff (long_int year, long_int yday, int hour, int min, int sec,
 		     tp->tm_hour, tp->tm_min, tp->tm_sec);
 }
-/* Use CONVERT to convert T to a struct tm value in *TM.  T must be in
+/* Convert T to a struct tm value in *TM.  Use localtime64_r if LOCAL,
-   range for __time64_t.  Return TM if successful, NULL (setting errno) on
+   otherwise gmtime64_r.  T must be in range for __time64_t.  Return
-   failure.  */
+   TM if successful, NULL (setting errno) on failure.  */
 static struct tm *
-convert_time (struct tm *(*convert) (const __time64_t *, struct tm *),
+convert_time (long_int t, bool local, struct tm *tm)
 	      long_int t, struct tm *tm)
 {
  __time64_t x = t;
-  return convert (&x, tm);
+  if (local)
    return __localtime64_r (&x, tm);
  else
    return __gmtime64_r (&x, tm);
 }
 /* Call it __tzconvert to sync with other parts of glibc.  */
 #define __tz_convert convert_time
-/* Use CONVERT to convert *T to a broken down time in *TP.
+/* Convert *T to a broken down time in *TP (as if by localtime if
-   If *T is out of range for conversion, adjust it so that
+   LOCAL, otherwise as if by gmtime).  If *T is out of range for
-   it is the nearest in-range value and then convert that.
+   conversion, adjust it so that it is the nearest in-range value and
-   A value is in range if it fits in both __time64_t and long_int.
+   then convert that.  A value is in range if it fits in both
-   Return TP on success, NULL (setting errno) on failure.  */
+   __time64_t and long_int.  Return TP on success, NULL (setting
   errno) on failure.  */
 static struct tm *
-ranged_convert (struct tm *(*convert) (const __time64_t *, struct tm *),
+ranged_convert (bool local, long_int *t, struct tm *tp)
 		long_int *t, struct tm *tp)
 {
  long_int t1 = (*t < mktime_min ? mktime_min
 		 : *t <= mktime_max ? *t : mktime_max);
-  struct tm *r = convert_time (convert, t1, tp);
+  struct tm *r = __tz_convert (t1, local, tp);
  if (r)
    {
      *t = t1;
@ -294,7 +297,7 @@ ranged_convert (struct tm *(*convert) (const __time64_t *, struct tm *),
      long_int mid = long_int_avg (ok, bad);
      if (mid == ok || mid == bad)
 	break;
-      if (convert_time (convert, mid, tp))
+      if (__tz_convert (mid, local, tp))
 	ok = mid, oktm = *tp;
      else if (errno != EOVERFLOW)
 	return NULL;
@ -310,36 +313,45 @@ ranged_convert (struct tm *(*convert) (const __time64_t *, struct tm *),
 }
-/* Convert *TP to a __time64_t value, inverting
+/* Convert *TP to a __time64_t value.  If LOCAL, the reverse mapping
-   the monotonic and mostly-unit-linear conversion function CONVERT.
+   is performed as if localtime, otherwise as if by gmtime.  Use
-   Use *OFFSET to keep track of a guess at the offset of the result,
+   *OFFSET to keep track of a guess at the offset of the result,
   compared to what the result would be for UTC without leap seconds.
-   If *OFFSET's guess is correct, only one CONVERT call is needed.
+   If *OFFSET's guess is correct, only one reverse mapping call is
-   If successful, set *TP to the canonicalized struct tm;
+   needed.  If successful, set *TP to the canonicalized struct tm;
   otherwise leave *TP alone, return ((time_t) -1) and set errno.
   This function is external because it is used also by timegm.c.  */
 __time64_t
-__mktime_internal (struct tm *tp,
+__mktime_internal (struct tm *tp, bool local, mktime_offset_t *offset)
 		   struct tm *(*convert) (const __time64_t *, struct tm *),
 		   mktime_offset_t *offset)
 {
  struct tm tm;
-  /* The maximum number of probes (calls to CONVERT) should be enough
+  /* The maximum number of probes should be enough to handle any
-     to handle any combinations of time zone rule changes, solar time,
+     combinations of time zone rule changes, solar time, leap seconds,
-     leap seconds, and oscillations around a spring-forward gap.
+     and oscillations around a spring-forward gap.  POSIX.1 prohibits
-     POSIX.1 prohibits leap seconds, but some hosts have them anyway.  */
+     leap seconds, but some hosts have them anyway.  */
  int remaining_probes = 6;
-  /* Time requested.  Copy it in case CONVERT modifies *TP; this can
+#ifndef _LIBC
-     occur if TP is localtime's returned value and CONVERT is localtime.  */
+  /* Gnulib mktime doesn't lock the tz state, so it may need to probe
     more often if some other thread changes local time while
     __mktime_internal is probing.  Double the number of probes; this
     should suffice for practical cases that are at all likely.  */
  remaining_probes *= 2;
 #endif
  /* Time requested.  Copy it in case gmtime/localtime modify *TP;
     this can occur if TP is localtime's returned value and CONVERT is
     localtime.  */
  int sec = tp->tm_sec;
  int min = tp->tm_min;
  int hour = tp->tm_hour;
  int mday = tp->tm_mday;
  int mon = tp->tm_mon;
  int year_requested = tp->tm_year;
-  int isdst = tp->tm_isdst;
+
  /* Ignore any tm_isdst request for timegm.  */
  int isdst = local ? tp->tm_isdst : 0;
  /* 1 if the previous probe was DST.  */
  int dst2 = 0;
@ -390,7 +402,7 @@ __mktime_internal (struct tm *tp,
  while (true)
    {
-      if (! ranged_convert (convert, &t, &tm))
+      if (! ranged_convert (local, &t, &tm))
 	return -1;
      long_int dt = tm_diff (year, yday, hour, min, sec, &tm);
      if (dt == 0)
@ -469,7 +481,7 @@ __mktime_internal (struct tm *tp,
 	    if (! ckd_add (&ot, t, delta * direction))
 	      {
 		struct tm otm;
-		if (! ranged_convert (convert, &ot, &otm))
+		if (! ranged_convert (local, &ot, &otm))
 		  return -1;
 		if (! isdst_differ (isdst, otm.tm_isdst))
 		  {
@ -479,7 +491,7 @@ __mktime_internal (struct tm *tp,
 						&otm);
 		    if (mktime_min <= gt && gt <= mktime_max)
 		      {
-			if (convert_time (convert, gt, &tm))
+			if (__tz_convert (gt, local, &tm))
 			  {
 			    t = gt;
 			    goto offset_found;
@ -493,7 +505,7 @@ __mktime_internal (struct tm *tp,
      /* No unusual DST offset was found nearby.  Assume one-hour DST.  */
      t += 60 * 60 * dst_difference;
-      if (mktime_min <= t && t <= mktime_max && convert_time (convert, t, &tm))
+      if (mktime_min <= t && t <= mktime_max && __tz_convert (t, local, &tm))
 	goto offset_found;
      __set_errno (EOVERFLOW);
@ -520,7 +532,7 @@ __mktime_internal (struct tm *tp,
 	  __set_errno (EOVERFLOW);
 	  return -1;
 	}
-      if (! convert_time (convert, t, &tm))
+      if (! __tz_convert (t, local, &tm))
 	return -1;
    }
@ -536,14 +548,13 @@ __mktime_internal (struct tm *tp,
 __time64_t
 __mktime64 (struct tm *tp)
 {
-  /* POSIX.1 8.1.1 requires that whenever mktime() is called, the
+  /* POSIX.1 requires mktime to set external variables like 'tzname'
-     time zone names contained in the external variable 'tzname' shall
+     as though tzset had been called.  */
     be set as if the tzset() function had been called.  */
  __tzset ();
 # if defined _LIBC || NEED_MKTIME_WORKING
  static mktime_offset_t localtime_offset;
-  return __mktime_internal (tp, __localtime64_r, &localtime_offset);
+  return __mktime_internal (tp, true, &localtime_offset);
 # else
 #  undef mktime
  return mktime (tp);
--- a/lib/nproc.c
+++ b/lib/nproc.c
@ -20,6 +20,7 @@
 #include <config.h>
 #include "nproc.h"
 #include <errno.h>
 #include <limits.h>
 #include <stdlib.h>
 #include <unistd.h>
@ -125,6 +126,46 @@ num_processors_via_affinity_mask (void)
      }
  }
 #elif HAVE_SCHED_GETAFFINITY_LIKE_GLIBC /* glibc >= 2.3.4 */
  /* There are two ways to use the sched_getaffinity() function:
       - With a statically-sized cpu_set_t.
       - With a dynamically-sized cpu_set_t.
     Documentation:
     <https://www.kernel.org/doc/man-pages/online/pages/man2/sched_getaffinity.2.html>
     <https://www.kernel.org/doc/man-pages/online/pages/man3/CPU_SET.3.html>
     The second way has the advantage that it works on systems with more than
     1024 CPUs.  The first way has the advantage that it works also when memory
     is tight.  */
 # if defined CPU_ALLOC_SIZE /* glibc >= 2.6 */
  {
    unsigned int alloc_count = 1024;
    for (;;)
      {
        cpu_set_t *set = CPU_ALLOC (alloc_count);
        if (set == NULL)
          /* Out of memory.  */
          break;
        unsigned int size = CPU_ALLOC_SIZE (alloc_count);
        if (sched_getaffinity (0, size, set) == 0)
          {
            unsigned int count = CPU_COUNT_S (size, set);
            CPU_FREE (set);
            return count;
          }
        if (errno != EINVAL)
          {
            /* Some other error.  */
            CPU_FREE (set);
            return 0;
          }
        CPU_FREE (set);
        /* Retry with some larger cpu_set_t.  */
        alloc_count *= 2;
        if (alloc_count == 0)
          /* Integer overflow.  Avoid an endless loop.  */
          return 0;
      }
  }
 # endif
  {
    cpu_set_t set;
--- a/lib/pipe2.c
+++ b/lib/pipe2.c
@ -40,7 +40,7 @@ pipe2 (int fd[2], int flags)
 {
  /* Mingw _pipe() corrupts fd on failure; also, if we succeed at
     creating the pipe but later fail at changing fcntl, we want
-     to leave fd unchanged: http://austingroupbugs.net/view.php?id=467  */
+     to leave fd unchanged: https://austingroupbugs.net/view.php?id=467  */
  int tmp[2];
  tmp[0] = fd[0];
  tmp[1] = fd[1];
--- a/lib/realloc.c
+++ b/lib/realloc.c
@ -18,17 +18,21 @@
 /* written by Jim Meyering and Bruno Haible */
 /* Ensure that we call the system's realloc() below.  */
 #define _GL_USE_STDLIB_ALLOC 1
 #include <config.h>
 #define _GL_REALLOC_INLINE _GL_EXTERN_INLINE
 #include <stdlib.h>
 #include <errno.h>
 #include <stdckdint.h>
-#include "xalloc-oversized.h"
+#ifdef __CHERI_PURE_CAPABILITY__
 # include <cheri.h>
 #endif
-/* Call the system's realloc below.  This file does not define
+#ifndef _GL_INLINE_RPL_REALLOC
   _GL_USE_STDLIB_ALLOC because it needs Gnulib's malloc if present.  */
 #undef realloc
 /* Change the size of an allocated block of memory P to N bytes,
   with error checking.  If P is NULL, use malloc.  Otherwise if N is zero,
@ -37,27 +41,70 @@
 void *
 rpl_realloc (void *p, size_t n)
 {
-  if (p == NULL)
+  size_t n1 = n;
    return malloc (n);
  if (n == 0)
    {
-      free (p);
+# if NEED_SANITIZED_REALLOC
-      return NULL;
+      /* When P is non-null, ISO C23 §7.24.3.7.(3) says realloc (P, 0) has
         undefined behavior even though C17 and earlier partially defined
         the behavior.  Let the programmer know.
         When the undefined-behaviour sanitizers report this case, i.e. when
         <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117233> and
         <https://github.com/llvm/llvm-project/issues/113065>
         have been closed and new releases of GCC and clang have been made,
         we can revisit this code.  */
      if (p != NULL)
        abort ();
 # endif
      /* realloc (NULL, 0) acts like glibc malloc (0), i.e., like malloc (1)
         except the caller cannot dereference any non-null return.
         realloc (P, 0) with non-null P is a messier situation.
         As mentioned above, C23 says behavior is undefined.
         POSIX.1-2024 extends C17 to say realloc (P, 0)
         either fails by setting errno and returning a null pointer,
         or succeeds by freeing P and then either:
           (a) setting errno=EINVAL and returning a null pointer; or
           (b) acting like a successful malloc (0).
         glibc 1 through 2.1 realloc acted like (b),
         which conforms to C17, to C23 and to POSIX.1-2024.
         glibc 2.1.1+ realloc acts like (a) except it does not set errno;
         this conforms to C17 and to C23 but not to POSIX.1-2024.
         Quite possibly future versions of POSIX will change,
         due either to C23 or to (a)'s semantics being messy.
         Act like (b), as that's easy, matches GNU, BSD and V7 malloc,
         matches BSD and V7 realloc, and requires no extra code at
         caller sites.  */
 # if !HAVE_REALLOC_0_NONNULL
      n1 = 1;
 # endif
    }
-  if (xalloc_oversized (n, 1))
+# if !HAVE_MALLOC_PTRDIFF
  ptrdiff_t signed_n;
  if (ckd_add (&signed_n, n, 0))
    {
      errno = ENOMEM;
      return NULL;
    }
 # endif
-  void *result = realloc (p, n);
+  void *result = realloc (p, n1);
 # if !HAVE_MALLOC_POSIX
  if (result == NULL)
    errno = ENOMEM;
 # endif
 # ifdef __CHERI_PURE_CAPABILITY__
  if (result != NULL)
    result = cheri_bounds_set (result, n);
 # endif
  return result;
 }
 #endif
--- a/lib/regex.h
+++ b/lib/regex.h
@ -647,12 +647,14 @@ extern int re_exec (const char *);
     || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \
     || __clang_major__ >= 3
 #  define _Restrict_ __restrict
-# elif 199901L <= __STDC_VERSION__ || defined restrict
+# else
 #  if 199901L <= __STDC_VERSION__ || defined restrict
 #   define _Restrict_ restrict
 #  else
 #   define _Restrict_
 #  endif
 # endif
 #endif
 /* For the ISO C99 syntax
     array_name[restrict]
   use glibc's __restrict_arr if available.
@ -661,7 +663,8 @@ extern int re_exec (const char *);
 #ifndef _Restrict_arr_
 # ifdef __restrict_arr
 #  define _Restrict_arr_ __restrict_arr
-# elif ((199901L <= __STDC_VERSION__ \
+# else
 #  if ((199901L <= __STDC_VERSION__ \
         || 3 < __GNUC__ + (1 <= __GNUC_MINOR__) \
         || __clang_major__ >= 3) \
        && !defined __cplusplus)
@ -670,6 +673,7 @@ extern int re_exec (const char *);
 #   define _Restrict_arr_
 #  endif
 # endif
 #endif
 /* POSIX compatibility.  */
 extern int regcomp (regex_t *_Restrict_ __preg,
--- a/lib/regex_internal.c
+++ b/lib/regex_internal.c
@ -937,8 +937,7 @@ re_node_set_alloc (re_node_set *set, Idx size)
  set->alloc = size;
  set->nelem = 0;
  set->elems = re_malloc (Idx, size);
-  if (__glibc_unlikely (set->elems == NULL)
+  if (__glibc_unlikely (set->elems == NULL))
      && (MALLOC_0_IS_NONNULL || size != 0))
    return REG_ESPACE;
  return REG_NOERROR;
 }
--- a/lib/regex_internal.h
+++ b/lib/regex_internal.h
@ -100,10 +100,12 @@
 /* This is for other GNU distributions with internationalized messages.  */
 #if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
 # include <libintl.h>
 # ifdef _LIBC
 # undef gettext
 # ifdef _LIBC
 #  define gettext(msgid) \
  __dcgettext (_libc_intl_domainname, msgid, LC_MESSAGES)
 # else
 #  define gettext(msgid) dgettext ("gnulib", msgid)
 # endif
 #else
 # undef gettext
@ -436,12 +438,6 @@ typedef struct re_dfa_t re_dfa_t;
 #define re_string_skip_bytes(pstr,idx) ((pstr)->cur_idx += (idx))
 #define re_string_set_index(pstr,idx) ((pstr)->cur_idx = (idx))
 #ifdef _LIBC
 # define MALLOC_0_IS_NONNULL 1
 #elif !defined MALLOC_0_IS_NONNULL
 # define MALLOC_0_IS_NONNULL 0
 #endif
 #ifndef MAX
 # define MAX(a,b) ((a) < (b) ? (b) : (a))
 #endif
--- a/lib/stdio-impl.h
+++ b/lib/stdio-impl.h
@ -110,7 +110,7 @@
 # endif
 # if (defined __NetBSD__ && __NetBSD_Version__ >= 105270000) || defined __OpenBSD__ || defined __minix /* NetBSD >= 1.5ZA, OpenBSD, Minix 3 */
-  /* See <http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup>
+  /* See <https://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup>
     and <https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup>
     and <https://github.com/Stichting-MINIX-Research-Foundation/minix/blob/master/lib/libc/stdio/fileext.h> */
  struct __sfileext
--- a/lib/stdlib.c
+++ b/lib/stdlib.c
@ -0,0 +1,21 @@
 /* Inline functions for <stdlib.h>.
   Copyright (C) 2024 Free Software Foundation, Inc.
   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.
   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.
   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 #include <config.h>
 #define _GL_STDLIB_INLINE _GL_EXTERN_INLINE
 #include <stdlib.h>
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@ -54,7 +54,7 @@
 /* This file uses _Noreturn, _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC,
   _GL_ATTRIBUTE_NODISCARD, _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PURE,
-   GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
+   _GL_INLINE_HEADER_BEGIN, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
 #if !_GL_CONFIG_H_INCLUDED
 #error "Please include config.h first."
 #endif
@ -130,6 +130,14 @@ struct random_data
 # include <string>
 #endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef _GL_STDLIB_INLINE
 # define _GL_STDLIB_INLINE _GL_INLINE
 #endif
 #ifndef _GL_REALLOC_INLINE
 # define _GL_REALLOC_INLINE _GL_INLINE
 #endif
 /* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
   that can be freed by passing them as the Ith argument to the
   function F.  */
@ -283,8 +291,8 @@ _GL_CXXALIASWARN (free);
 #elif defined GNULIB_POSIXCHECK
 # undef free
 /* Assume free is always declared.  */
-_GL_WARN_ON_USE (free, "free is not future POSIX compliant everywhere - "
+_GL_WARN_ON_USE (free, "free is not POSIX:2024 compliant everywhere - "
-                 "use gnulib module free for portability");
+                 "use gnulib module free-posix for portability");
 #endif
@ -367,9 +375,10 @@ _GL_WARN_ON_USE (atoll, "atoll is unportable - "
 #endif
 #if @GNULIB_CALLOC_POSIX@
-# if (@GNULIB_CALLOC_POSIX@ && @REPLACE_CALLOC_FOR_CALLOC_POSIX@) \
+# if @REPLACE_CALLOC_FOR_CALLOC_POSIX@ \
     || (@GNULIB_CALLOC_GNU@ && @REPLACE_CALLOC_FOR_CALLOC_GNU@)
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
        || _GL_USE_STDLIB_ALLOC)
 #   undef calloc
 #   define calloc rpl_calloc
 #  endif
@ -681,7 +690,7 @@ _GL_WARN_ON_USE (grantpt, "grantpt is not portable - "
   by never specifying a zero size), so it does not need malloc or
   realloc to be redefined.  */
 #if @GNULIB_MALLOC_POSIX@
-# if (@GNULIB_MALLOC_POSIX@ && @REPLACE_MALLOC_FOR_MALLOC_POSIX@) \
+# if @REPLACE_MALLOC_FOR_MALLOC_POSIX@ \
     || (@GNULIB_MALLOC_GNU@ && @REPLACE_MALLOC_FOR_MALLOC_GNU@)
 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
        || _GL_USE_STDLIB_ALLOC)
@ -740,11 +749,12 @@ _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
 /* Return maximum number of bytes of a multibyte character.  */
 #if @REPLACE_MB_CUR_MAX@
 # if !GNULIB_defined_MB_CUR_MAX
-static inline
+_GL_STDLIB_INLINE int
-int gl_MB_CUR_MAX (void)
+gl_MB_CUR_MAX (void)
 {
  /* Turn the value 3 to the value 4, as needed for the UTF-8 encoding.  */
-  return MB_CUR_MAX + (MB_CUR_MAX == 3);
+  int gl_mb_cur_max = MB_CUR_MAX;
  return gl_mb_cur_max == 3 ? 4 : gl_mb_cur_max;
 }
 #  undef MB_CUR_MAX
 #  define MB_CUR_MAX gl_MB_CUR_MAX ()
@ -1454,16 +1464,25 @@ _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 #if @GNULIB_REALLOC_POSIX@
-# if (@GNULIB_REALLOC_POSIX@ && @REPLACE_REALLOC_FOR_REALLOC_POSIX@) \
+# if @REPLACE_REALLOC_FOR_REALLOC_POSIX@
-     || (@GNULIB_REALLOC_GNU@ && @REPLACE_REALLOC_FOR_REALLOC_GNU@)
+#  if @REPLACE_REALLOC_FOR_REALLOC_POSIX@ == 2
 #   define _GL_INLINE_RPL_REALLOC 1
 _GL_REALLOC_INLINE void *
 rpl_realloc (void *ptr, size_t size)
 {
  return realloc (ptr, size ? size : 1);
 }
 #  endif
 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
        || _GL_USE_STDLIB_ALLOC)
 #   undef realloc
 #   define realloc rpl_realloc
 #  endif
 #  if !defined _GL_INLINE_RPL_REALLOC
 _GL_FUNCDECL_RPL (realloc, void *,
                  (void *ptr, size_t size),
                  _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_NODISCARD);
 #  endif
 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 # else
 #  if __GNUC__ >= 11 && !defined __clang__
@ -1968,6 +1987,8 @@ _GL_CXXALIASWARN (wctomb);
 #endif
 _GL_INLINE_HEADER_END
 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 #endif /* _@GUARD_PREFIX@_STDLIB_H */
 #endif
--- a/lib/timegm.c
+++ b/lib/timegm.c
@ -30,8 +30,7 @@ __time64_t
 __timegm64 (struct tm *tmp)
 {
  static mktime_offset_t gmtime_offset;
-  tmp->tm_isdst = 0;
+  return __mktime_internal (tmp, false, &gmtime_offset);
  return __mktime_internal (tmp, __gmtime64_r, &gmtime_offset);
 }
 #if defined _LIBC && __TIMESIZE != 64
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@ -181,6 +181,9 @@ _GL_INLINE_HEADER_BEGIN
 #ifndef _GL_UNISTD_INLINE
 # define _GL_UNISTD_INLINE _GL_INLINE
 #endif
 #ifndef _GL_GETPAGESIZE_INLINE
 # define _GL_GETPAGESIZE_INLINE _GL_INLINE
 #endif
 /* Hide some function declarations from <winsock2.h>.  */
@ -1478,7 +1481,7 @@ _GL_FUNCDECL_SYS (getpagesize, int, (void), );
 #     define getpagesize() _gl_getpagesize ()
 #    else
 #     if !GNULIB_defined_getpagesize_function
-_GL_UNISTD_INLINE int
+_GL_GETPAGESIZE_INLINE int
 getpagesize ()
 {
  return _gl_getpagesize ();
--- a/lib/utimens.c
+++ b/lib/utimens.c
@ -78,6 +78,21 @@ static int utimensat_works_really;
 static int lutimensat_works_really;
 #endif /* HAVE_UTIMENSAT || HAVE_FUTIMENS */
 static bool
 is_valid_timespec (struct timespec const *timespec)
 {
  return (timespec->tv_nsec == UTIME_NOW
          || timespec->tv_nsec == UTIME_OMIT
          || (0 <= timespec->tv_nsec && timespec->tv_nsec < TIMESPEC_HZ));
 }
 static bool
 is_valid_timespecs (struct timespec const timespec[2])
 {
  return (is_valid_timespec (&timespec[0])
          && is_valid_timespec (&timespec[1]));
 }
 /* Validate the requested timestamps.  Return 0 if the resulting
   timespec can be used for utimensat (after possibly modifying it to
   work around bugs in utimensat).  Return a positive value if the
@ -90,14 +105,7 @@ validate_timespec (struct timespec timespec[2])
 {
  int result = 0;
  int utime_omit_count = 0;
-  if ((timespec[0].tv_nsec != UTIME_NOW
+  if (!is_valid_timespecs (timespec))
       && timespec[0].tv_nsec != UTIME_OMIT
       && ! (0 <= timespec[0].tv_nsec
             && timespec[0].tv_nsec < TIMESPEC_HZ))
      || (timespec[1].tv_nsec != UTIME_NOW
          && timespec[1].tv_nsec != UTIME_OMIT
          && ! (0 <= timespec[1].tv_nsec
                && timespec[1].tv_nsec < TIMESPEC_HZ)))
    {
      errno = EINVAL;
      return -1;
@ -516,24 +524,44 @@ fdutimens (int fd, char const *file, struct timespec const timespec[2])
  }
 }
 #if !HAVE_UTIMENS
 /* Set the access and modification timestamps of FILE to be
   TIMESPEC[0] and TIMESPEC[1], respectively.  */
 int
 utimens (char const *file, struct timespec const timespec[2])
 #undef utimens
 {
-  return fdutimens (-1, file, timespec);
+#if HAVE_UTIMENS
  /* NetBSD's native utimens() does not fulfil the Gnulib expectations:
     At least in NetBSD 10.0, it does not validate the timespec argument.  */
  if (timespec != NULL && !is_valid_timespecs (timespec))
    {
      errno = EINVAL;
      return -1;
    }
  return utimens (file, timespec);
 #else
  return fdutimens (-1, file, timespec);
 #endif
 }
 #if !HAVE_LUTIMENS
 /* Set the access and modification timestamps of FILE to be
   TIMESPEC[0] and TIMESPEC[1], respectively, without dereferencing
   symlinks.  Fail with ENOSYS if the platform does not support
   changing symlink timestamps, but FILE was a symlink.  */
 int
 lutimens (char const *file, struct timespec const timespec[2])
 #undef lutimens
 {
 #if HAVE_LUTIMENS
  /* NetBSD's native lutimens() does not fulfil the Gnulib expectations:
     At least in NetBSD 10.0, it does not validate the timespec argument.  */
  if (timespec != NULL && !is_valid_timespecs (timespec))
    {
      errno = EINVAL;
      return -1;
    }
  return lutimens (file, timespec);
 #else
  struct timespec adjusted_timespec[2];
  struct timespec *ts = timespec ? adjusted_timespec : NULL;
  int adjustment_needed = 0;
@ -648,5 +676,5 @@ lutimens (char const *file, struct timespec const timespec[2])
    return fdutimens (-1, file, ts);
  errno = ENOSYS;
  return -1;
 }
 #endif
 }
--- a/lib/utimens.h
+++ b/lib/utimens.h
@ -33,12 +33,16 @@ extern "C" {
 #endif
 int fdutimens (int, char const *, struct timespec const [2]);
-#if !HAVE_UTIMENS
+
 #if HAVE_UTIMENS
 # define utimens rpl_utimens
 #endif
 int utimens (char const *, struct timespec const [2]);
 #if HAVE_LUTIMENS
 # define lutimens rpl_lutimens
 #endif
 #if !HAVE_LUTIMENS
 int lutimens (char const *, struct timespec const [2]);
 #endif
 #ifdef __cplusplus
 }
--- a/m4/00gnulib.m4
+++ b/m4/00gnulib.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl This file must be named something that sorts before all other
 dnl gnulib-provided .m4 files.  It is needed until the clang fix has
--- a/m4/__inline.m4
+++ b/m4/__inline.m4
@ -4,6 +4,7 @@ dnl Copyright 2017-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Test for __inline keyword
--- a/m4/absolute-header.m4
+++ b/m4/absolute-header.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Derek Price.
--- a/m4/acl.m4
+++ b/m4/acl.m4
@ -1,9 +1,10 @@
 # acl.m4
-# serial 31
+# serial 34
 dnl Copyright (C) 2002, 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for access control list (ACL) primitives
@ -15,9 +16,12 @@ AC_DEFUN([gl_FUNC_ACL_ARG],
  AC_ARG_ENABLE([acl],
    AS_HELP_STRING([[--disable-acl]], [do not support ACLs]),
    , [enable_acl=auto])
  AC_ARG_WITH([libsmack],
    [AS_HELP_STRING([--without-libsmack],
       [do not use libsmack, even on systems that have it])]
    [], [with_libsmack=maybe])
 ])
 AC_DEFUN_ONCE([gl_FUNC_ACL],
 [
  AC_REQUIRE([gl_FUNC_ACL_ARG])
@ -30,8 +34,8 @@ AC_DEFUN_ONCE([gl_FUNC_ACL],
    if test $ac_cv_header_sys_acl_h = yes; then
      gl_saved_LIBS=$LIBS
-      dnl Test for POSIX-draft-like API (GNU/Linux, FreeBSD, Mac OS X,
+      dnl Test for POSIX-draft-like API (GNU/Linux, FreeBSD, NetBSD >= 10,
-      dnl IRIX, Tru64, Cygwin >= 2.5).
+      dnl Mac OS X, IRIX, Tru64, Cygwin >= 2.5).
      dnl -lacl is needed on GNU/Linux, -lpacl on OSF/1.
      if test $use_acl = 0; then
        AC_SEARCH_LIBS([acl_get_file], [acl pacl],
@ -40,6 +44,7 @@ AC_DEFUN_ONCE([gl_FUNC_ACL],
           fi
           AC_CHECK_FUNCS(
             [acl_get_file acl_get_fd acl_set_file acl_set_fd \
              acl_get_link_np \
              acl_free acl_from_mode acl_from_text \
              acl_delete_def_file acl_extended_file \
              acl_delete_fd_np acl_delete_file_np \
@ -189,9 +194,35 @@ AC_DEFUN([gl_FILE_HAS_ACL],
  AC_CHECK_HEADERS_ONCE([linux/xattr.h])
  AC_CHECK_FUNCS_ONCE([listxattr])
  FILE_HAS_ACL_LIB=
-  AS_CASE([$enable_acl,$ac_cv_header_linux_xattr_h,$ac_cv_func_listxattr],
+
-    [no,*,*], [],
+  gl_file_has_acl_uses_smack=no
-    [*,yes,yes], [],
+  AS_CASE([$enable_acl,$with_libsmack,$ac_cv_header_linux_xattr_h,$ac_cv_func_listxattr],
    [no,* | *,no,*], [],
    [*,*,yes,yes],
      [AC_CHECK_HEADER([sys/smack.h],
         [gl_saved_LIBS=$LIBS
          AC_SEARCH_LIBS([smack_new_label_from_path], [smack],
            [AC_DEFINE([HAVE_SMACK], [1],
               [Define to 1 if libsmack is usable.])
             AS_CASE([$ac_cv_search_smack_new_label_from_path],
               ["none required"], [],
               [FILE_HAS_ACL_LIB=$ac_cv_search_new_label_from_path])
             gl_file_has_acl_uses_smack=yes],
            [AS_CASE([$with_libsmack],
               [yes], [AC_MSG_ERROR([libsmack not found or unusable])])])
          LIBS=$gl_saved_LIBS])])
  gl_file_has_acl_uses_selinux=no
  AS_CASE([$enable_acl,$with_selinux,$ac_cv_header_linux_xattr_h,$ac_cv_func_listxattr],
    [no,* | *,no,*], [],
    [*,*,yes,yes],
      [AC_REQUIRE([gl_CHECK_HEADER_SELINUX_SELINUX_H])
       AS_IF([test $USE_SELINUX_SELINUX_H = 1],
         [FILE_HAS_ACL_LIB="$FILE_HAS_ACL_LIB $LIB_SELINUX"
          gl_file_has_acl_uses_selinux=yes])])
  AS_CASE([$enable_acl,$gl_file_has_acl_uses_selinux,$gl_file_has_acl_uses_smack],
    [no,* | *,yes,* | *,yes], [],
    [*],
      [dnl Set gl_need_lib_has_acl to a nonempty value, so that any
       dnl later gl_FUNC_ACL call will set FILE_HAS_ACL_LIB=$LIB_ACL.
--- a/m4/alloca.m4
+++ b/m4/alloca.m4
@ -5,6 +5,7 @@ dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_ALLOCA],
 [
--- a/m4/assert_h.m4
+++ b/m4/assert_h.m4
@ -1,9 +1,10 @@
 # assert_h.m4
-# serial 1
+# serial 4
 dnl Copyright (C) 2011-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Paul Eggert.
@ -14,7 +15,6 @@ AC_DEFUN([gl_ASSERT_H],
     for gl_working in "yes, a keyword" "yes, an <assert.h> macro"; do
       AS_CASE([$gl_working],
         [*assert.h*], [CFLAGS="$gl_saved_CFLAGS -DINCLUDE_ASSERT_H"])
       AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [[#if defined __clang__ && __STDC_VERSION__ < 202311
@ -30,12 +30,14 @@ AC_DEFUN([gl_ASSERT_H],
            [[
              static_assert (sizeof (char) == 1, "sizeof does not work");
              static_assert (sizeof (char) == 1);
-          ]])],
+            ]])
         ],
         [gl_cv_static_assert=$gl_working],
         [gl_cv_static_assert=no])
       CFLAGS=$gl_saved_CFLAGS
       test "$gl_cv_static_assert" != no && break
-     done])
+     done
    ])
  GL_GENERATE_ASSERT_H=false
  AS_CASE([$gl_cv_static_assert],
@ -48,6 +50,10 @@ AC_DEFUN([gl_ASSERT_H],
  dnl The "zz" puts this toward config.h's end, to avoid potential
  dnl collisions with other definitions.
  dnl Hardcode the known configuration results for GCC and clang, so that
  dnl a configuration made with the C compiler works also with the C++ compiler
  dnl and vice versa.
  dnl The seemingly redundant parentheses are necessary for MSVC 14.
  dnl #undef assert so that programs are not tempted to use it without
  dnl specifically including assert.h.
  dnl #undef __ASSERT_H__ so that on IRIX, when programs later include
@ -55,7 +61,16 @@ AC_DEFUN([gl_ASSERT_H],
  dnl Break the #undef_s apart with a comment so that 'configure' does
  dnl not comment them out.
  AH_VERBATIM([zzstatic_assert],
-[#if (!defined HAVE_C_STATIC_ASSERT && !defined assert \
+[#if (!(defined __clang__ \
       ? (defined __cplusplus \
          ? __cplusplus >= 201703L \
          : __STDC_VERSION__ >= 202000L && __clang_major__ >= 16) \
       : (defined __GNUC__ \
          ? (defined __cplusplus \
             ? __cplusplus >= 201103L && __GNUG__ >= 6 \
             : __STDC_VERSION__ >= 202000L && __GNUC__ >= 13) \
          : defined HAVE_C_STATIC_ASSERT)) \
     && !defined assert \
     && (!defined __cplusplus \
         || (__cpp_static_assert < 201411 \
             && __GNUG__ < 6 && __clang_major__ < 6)))
@ -65,8 +80,9 @@ AC_DEFUN([gl_ASSERT_H],
  #undef/**/__ASSERT_H__
 #endif
 /* Solaris 11.4 <assert.h> defines static_assert as a macro with 2 arguments.
-    We need it also to be invocable with a single argument.  */
+    We need it also to be invocable with a single argument.
- #if defined __sun && (__STDC_VERSION__ - 0 >= 201112L) && !defined __cplusplus
+    Haiku 2022 <assert.h> does not define static_assert at all.  */
 #if (__STDC_VERSION__ - 0 >= 201112L) && !defined __cplusplus
  #undef/**/static_assert
  #define static_assert _Static_assert
 #endif
--- a/m4/builtin-expect.m4
+++ b/m4/builtin-expect.m4
@ -4,6 +4,7 @@ dnl Copyright 2016-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Provide a GCC-compatible __builtin_expect macro in <config.h>.
--- a/m4/byteswap.m4
+++ b/m4/byteswap.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2005, 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Written by Oskar Liljeblad.
--- a/m4/c-bool.m4
+++ b/m4/c-bool.m4
@ -1,9 +1,10 @@
 # c-bool.m4
-# serial 1
+# serial 3
 dnl Copyright 2022-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for bool that conforms to C2023.
@ -29,12 +30,23 @@ AC_DEFUN([gl_C_BOOL],
  dnl The "zz" puts this toward config.h's end, to avoid potential
  dnl collisions with other definitions.
  dnl If 'bool', 'true' and 'false' do not work, arrange for them to work.
-  dnl In C, this means including <stdbool.h> if it is not already included.
+  dnl Hardcode the known configuration results for GCC and clang, so that
  dnl a configuration made with the C compiler works also with the C++ compiler
  dnl and vice versa.
  dnl The seemingly redundant parentheses are necessary for MSVC 14.
  dnl "Arrange for them to work", in C, means including <stdbool.h> if it is
  dnl not already included.
  dnl However, if the preprocessor mistakenly treats 'true' as 0,
  dnl define it to a bool expression equal to 1; this is needed in
  dnl Sun C++ 5.11 (Oracle Solaris Studio 12.2, 2010) and older.
  AH_VERBATIM([zzbool],
-[#ifndef HAVE_C_BOOL
+[#if !(defined __cplusplus \
      ? 1 \
      : (defined __clang__ \
         ? __STDC_VERSION__ >= 202000L && __clang_major__ >= 15 \
         : (defined __GNUC__ \
            ? __STDC_VERSION__ >= 202000L && __GNUC__ >= 13 \
            : defined HAVE_C_BOOL)))
 # if !defined __cplusplus && !defined __bool_true_false_are_defined
 #  if HAVE_STDBOOL_H
 #   include <stdbool.h>
--- a/m4/canonicalize.m4
+++ b/m4/canonicalize.m4
@ -6,6 +6,7 @@ dnl Copyright (C) 2003-2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Provides canonicalize_file_name and canonicalize_filename_mode, but does
 # not provide or fix realpath.
--- a/m4/clock_time.m4
+++ b/m4/clock_time.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for clock_getres, clock_gettime and clock_settime,
 # and set CLOCK_TIME_LIB.
--- a/m4/codeset.m4
+++ b/m4/codeset.m4
@ -5,6 +5,7 @@ dnl Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Bruno Haible.
--- a/m4/copy-file-range.m4
+++ b/m4/copy-file-range.m4
@ -4,6 +4,7 @@ dnl Copyright 2019-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_COPY_FILE_RANGE],
 [
--- a/m4/d-type.m4
+++ b/m4/d-type.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 1997, 1999-2004, 2006, 2009-2024 Free Software Foundation, Inc
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Jim Meyering.
 dnl
--- a/m4/dirent_h.m4
+++ b/m4/dirent_h.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Written by Bruno Haible.
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2001-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Find out how to get the file descriptor associated with an open DIR*.
--- a/m4/double-slash-root.m4
+++ b/m4/double-slash-root.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_DOUBLE_SLASH_ROOT],
 [
--- a/m4/dup2.m4
+++ b/m4/dup2.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002, 2005, 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_DUP2],
 [
--- a/m4/endian_h.m4
+++ b/m4/endian_h.m4
@ -4,6 +4,7 @@ dnl Copyright 2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl A placeholder for <endian.h>, for platforms that have issues.
--- a/m4/environ.m4
+++ b/m4/environ.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2001-2004, 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN_ONCE([gl_ENVIRON],
 [
--- a/m4/errno_h.m4
+++ b/m4/errno_h.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2004, 2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_PREREQ([2.61])
--- a/m4/euidaccess.m4
+++ b/m4/euidaccess.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_NONREENTRANT_EUIDACCESS],
 [
--- a/m4/execinfo.m4
+++ b/m4/execinfo.m4
@ -4,6 +4,7 @@ dnl Copyright 2012-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for GNU-style execinfo.h.
--- a/m4/extensions-aix.m4
+++ b/m4/extensions-aix.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # On AIX, most extensions are already enabled through the _ALL_SOURCE macro,
 # defined by gl_USE_SYSTEM_EXTENSIONS.  gl_USE_AIX_EXTENSIONS additionally
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2003, 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Enable extensions on systems that normally disable them.
--- a/m4/extern-inline.m4
+++ b/m4/extern-inline.m4
@ -4,6 +4,7 @@ dnl Copyright 2012-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl 'extern inline' a la ISO C99.
--- a/m4/faccessat.m4
+++ b/m4/faccessat.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # See if we need to provide faccessat replacement.
--- a/m4/fchmodat.m4
+++ b/m4/fchmodat.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Written by Jim Meyering.
--- a/m4/fcntl.m4
+++ b/m4/fcntl.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # For now, this module ensures that fcntl()
 # - supports F_DUPFD correctly
--- a/m4/fcntl_h.m4
+++ b/m4/fcntl_h.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006-2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Configure fcntl.h.
--- a/m4/fdopendir.m4
+++ b/m4/fdopendir.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # See if we need to provide fdopendir.
--- a/m4/filemode.m4
+++ b/m4/filemode.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002, 2005-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FILEMODE],
 [
--- a/m4/flexmember.m4
+++ b/m4/flexmember.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for flexible array member support.
--- a/m4/fpending.m4
+++ b/m4/fpending.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2000-2001, 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Jim Meyering
 dnl Using code from emacs, based on suggestions from Paul Eggert
--- a/m4/fpieee.m4
+++ b/m4/fpieee.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl IEEE 754 standardized three items:
 dnl - The formats of single-float and double-float - nowadays commonly
--- a/m4/free.m4
+++ b/m4/free.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2003-2005, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Written by Paul Eggert and Bruno Haible.
--- a/m4/fstatat.m4
+++ b/m4/fstatat.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Written by Jim Meyering.
--- a/m4/fsusage.m4
+++ b/m4/fsusage.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 1997-1998, 2000-2001, 2003-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Obtaining file system usage information.
--- a/m4/fsync.m4
+++ b/m4/fsync.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_FSYNC],
 [
--- a/m4/futimens.m4
+++ b/m4/futimens.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # See if we need to provide futimens replacement.
--- a/m4/getdelim.m4
+++ b/m4/getdelim.m4
@ -6,6 +6,7 @@ dnl
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_PREREQ([2.59])
--- a/m4/getdtablesize.m4
+++ b/m4/getdtablesize.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_GETDTABLESIZE],
 [
--- a/m4/getgroups.m4
+++ b/m4/getgroups.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 1996-1997, 1999-2004, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Jim Meyering.
 dnl A wrapper around AC_FUNC_GETGROUPS.
--- a/m4/getline.m4
+++ b/m4/getline.m4
@ -7,6 +7,7 @@ dnl
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_PREREQ([2.59])
--- a/m4/getloadavg.m4
+++ b/m4/getloadavg.m4
@ -5,6 +5,7 @@ dnl Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Check for getloadavg.
--- a/m4/getopt.m4
+++ b/m4/getopt.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Request a POSIX compliant getopt function.
 AC_DEFUN([gl_FUNC_GETOPT_POSIX],
@ -77,7 +78,7 @@ AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
  fi
  dnl POSIX 2008 does not specify leading '+' behavior, but see
-  dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on
+  dnl https://austingroupbugs.net/view.php?id=191 for a recommendation on
  dnl the next version of POSIX.  For now, we only guarantee leading '+'
  dnl behavior with getopt-gnu.
  if test -z "$gl_replace_getopt"; then
--- a/m4/getrandom.m4
+++ b/m4/getrandom.m4
@ -4,6 +4,7 @@ dnl Copyright 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Written by Paul Eggert.
--- a/m4/gettime.m4
+++ b/m4/gettime.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002, 2004-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_GETTIME],
 [
--- a/m4/gettimeofday.m4
+++ b/m4/gettimeofday.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2001-2003, 2005, 2007, 2009-2024 Free Software Foundation, Inc
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Jim Meyering.
--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@ -1,9 +1,10 @@
 # gnulib-common.m4
-# serial 103
+# serial 106
 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_PREREQ([2.62])
@ -842,6 +843,35 @@ AC_DEFUN([gl_COMMON_BODY], [
 #  define _GL_UNUSED_LABEL
 # endif
 #endif
 /* The following attributes enable detection of multithread-safety problems
   and resource leaks at compile-time, by clang ≥ 15, when the warning option
   -Wthread-safety is enabled.  For usage, see
   <https://clang.llvm.org/docs/ThreadSafetyAnalysis.html>.  */
 #ifndef _GL_ATTRIBUTE_CAPABILITY_TYPE
 # if __clang_major__ >= 15
 #  define _GL_ATTRIBUTE_CAPABILITY_TYPE(concept) \
     __attribute__ ((__capability__ (concept)))
 # else
 #  define _GL_ATTRIBUTE_CAPABILITY_TYPE(concept)
 # endif
 #endif
 #ifndef _GL_ATTRIBUTE_ACQUIRE_CAPABILITY
 # if __clang_major__ >= 15
 #  define _GL_ATTRIBUTE_ACQUIRE_CAPABILITY(resource) \
     __attribute__ ((__acquire_capability__ (resource)))
 # else
 #  define _GL_ATTRIBUTE_ACQUIRE_CAPABILITY(resource)
 # endif
 #endif
 #ifndef _GL_ATTRIBUTE_RELEASE_CAPABILITY
 # if __clang_major__ >= 15
 #  define _GL_ATTRIBUTE_RELEASE_CAPABILITY(resource) \
     __attribute__ ((__release_capability__ (resource)))
 # else
 #  define _GL_ATTRIBUTE_RELEASE_CAPABILITY(resource)
 # endif
 #endif
 ])
  AH_VERBATIM([c_linkage],
 [/* In C++, there is the concept of "language linkage", that encompasses
@ -1351,6 +1381,7 @@ AC_DEFUN([gl_CC_GNULIB_WARNINGS],
    dnl -Wno-type-limits                      >= 4.3          >= 3.9
    dnl -Wno-undef                            >= 3            >= 3.9
    dnl -Wno-unsuffixed-float-constants       >= 4.5
    dnl -Wno-unused-const-variable            >= 4.4          >= 3.9
    dnl -Wno-unused-function                  >= 3            >= 3.9
    dnl -Wno-unused-parameter                 >= 3            >= 3.9
    dnl
@ -1380,6 +1411,9 @@ AC_DEFUN([gl_CC_GNULIB_WARNINGS],
      -Wno-sign-conversion
      -Wno-type-limits
      #endif
      #if (__GNUC__ + (__GNUC_MINOR__ >= 4) > 4 && !defined __clang__) || (__clang_major__ + (__clang_minor__ >= 9) > 3)
      -Wno-unused-const-variable
      #endif
      #if (__GNUC__ + (__GNUC_MINOR__ >= 5) > 4 && !defined __clang__)
      -Wno-unsuffixed-float-constants
      #endif
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@ -162,7 +162,6 @@ AC_DEFUN([gl_EARLY],
  # Code from module rawmemchr:
  # Code from module readlink:
  # Code from module readlinkat:
  # Code from module realloc-gnu:
  # Code from module realloc-posix:
  # Code from module regex:
  # Code from module root-uid:
@ -221,7 +220,6 @@ AC_DEFUN([gl_EARLY],
  # Code from module verify:
  # Code from module vla:
  # Code from module warnings:
  # Code from module xalloc-oversized:
  # Code from module year2038:
  AC_REQUIRE([AC_SYS_YEAR2038])
 ])
@ -424,6 +422,11 @@ AC_DEFUN([gl_INIT],
  ])
  gl_SYS_STAT_MODULE_INDICATOR([lstat])
  gl_MODULE_INDICATOR([lstat])
  AC_REQUIRE([gl_FUNC_MALLOC_POSIX])
  if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then
    AC_LIBOBJ([malloc])
  fi
  gl_STDLIB_MODULE_INDICATOR([malloc-posix])
  gl_FUNC_MEMMEM_SIMPLE
  if test $HAVE_MEMMEM = 0 || test $REPLACE_MEMMEM = 1; then
    AC_LIBOBJ([memmem])
@ -681,18 +684,15 @@ AC_DEFUN([gl_INIT],
  gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1=false
  gl_gnulib_enabled_lchmod=false
  gl_gnulib_enabled_e80bf6f757095d2e5fc94dafb8f8fc8b=false
  gl_gnulib_enabled_ef455225c00f5049c808c2eda3e76866=false
  gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31=false
  gl_gnulib_enabled_open=false
  gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7=false
  gl_gnulib_enabled_rawmemchr=false
  gl_gnulib_enabled_d3b2383720ee0e541357aa2aac598e2b=false
  gl_gnulib_enabled_61bcaca76b3e6f9ae55d57a1c3193bc4=false
  gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c=false
  gl_gnulib_enabled_strtoll=false
  gl_gnulib_enabled_utimens=false
  gl_gnulib_enabled_verify=false
  gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec=false
  func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b ()
  {
    if $gl_gnulib_enabled_260941c0e5dc67ec9e87d1fb321c300b; then :; else
@ -788,9 +788,6 @@ AC_DEFUN([gl_INIT],
                     [test $HAVE_GETGROUPS = 0 || test $REPLACE_GETGROUPS = 1])
      gl_UNISTD_MODULE_INDICATOR([getgroups])
      gl_gnulib_enabled_getgroups=true
      if test $HAVE_GETGROUPS = 0 || test $REPLACE_GETGROUPS = 1; then
        func_gl_gnulib_m4code_ef455225c00f5049c808c2eda3e76866
      fi
    fi
  }
  func_gl_gnulib_m4code_be453cec5eecf5731a274f2de7f2db36 ()
@ -813,7 +810,6 @@ AC_DEFUN([gl_INIT],
    if $gl_gnulib_enabled_8444034ea779b88768865bb60b4fb8c9; then :; else
      AC_PROG_MKDIR_P
      gl_gnulib_enabled_8444034ea779b88768865bb60b4fb8c9=true
      func_gl_gnulib_m4code_ef455225c00f5049c808c2eda3e76866
      func_gl_gnulib_m4code_61bcaca76b3e6f9ae55d57a1c3193bc4
    fi
  }
@ -831,7 +827,7 @@ AC_DEFUN([gl_INIT],
        func_gl_gnulib_m4code_getgroups
      fi
      if test $HAVE_GROUP_MEMBER = 0; then
-        func_gl_gnulib_m4code_d3b2383720ee0e541357aa2aac598e2b
+        func_gl_gnulib_m4code_e80bf6f757095d2e5fc94dafb8f8fc8b
      fi
    fi
  }
@ -856,24 +852,6 @@ AC_DEFUN([gl_INIT],
      fi
      gl_STDLIB_MODULE_INDICATOR([malloc-gnu])
      gl_gnulib_enabled_e80bf6f757095d2e5fc94dafb8f8fc8b=true
      func_gl_gnulib_m4code_ef455225c00f5049c808c2eda3e76866
      if test $REPLACE_MALLOC_FOR_MALLOC_GNU = 1; then
        func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec
      fi
    fi
  }
  func_gl_gnulib_m4code_ef455225c00f5049c808c2eda3e76866 ()
  {
    if $gl_gnulib_enabled_ef455225c00f5049c808c2eda3e76866; then :; else
      AC_REQUIRE([gl_FUNC_MALLOC_POSIX])
      if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then
        AC_LIBOBJ([malloc])
      fi
      gl_STDLIB_MODULE_INDICATOR([malloc-posix])
      gl_gnulib_enabled_ef455225c00f5049c808c2eda3e76866=true
      if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then
        func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec
      fi
    fi
  }
  func_gl_gnulib_m4code_5264294aa0a5557541b53c8c741f7f31 ()
@ -920,39 +898,15 @@ AC_DEFUN([gl_INIT],
      gl_gnulib_enabled_rawmemchr=true
    fi
  }
  func_gl_gnulib_m4code_d3b2383720ee0e541357aa2aac598e2b ()
  {
    if $gl_gnulib_enabled_d3b2383720ee0e541357aa2aac598e2b; then :; else
      gl_FUNC_REALLOC_GNU
      if test $REPLACE_REALLOC_FOR_REALLOC_GNU = 1; then
        AC_LIBOBJ([realloc])
      fi
      gl_STDLIB_MODULE_INDICATOR([realloc-gnu])
      gl_gnulib_enabled_d3b2383720ee0e541357aa2aac598e2b=true
      if test $REPLACE_REALLOC_FOR_REALLOC_GNU = 1; then
        func_gl_gnulib_m4code_e80bf6f757095d2e5fc94dafb8f8fc8b
      fi
      func_gl_gnulib_m4code_61bcaca76b3e6f9ae55d57a1c3193bc4
      if test $REPLACE_REALLOC_FOR_REALLOC_GNU = 1; then
        func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec
      fi
    fi
  }
  func_gl_gnulib_m4code_61bcaca76b3e6f9ae55d57a1c3193bc4 ()
  {
    if $gl_gnulib_enabled_61bcaca76b3e6f9ae55d57a1c3193bc4; then :; else
      gl_FUNC_REALLOC_POSIX
-      if test $REPLACE_REALLOC_FOR_REALLOC_POSIX = 1; then
+      gl_FUNC_REALLOC_0_NONNULL
-        AC_LIBOBJ([realloc])
+      gl_CONDITIONAL([GL_COND_OBJ_REALLOC_POSIX],
-      fi
+                     [test $REPLACE_REALLOC_FOR_REALLOC_POSIX != 0])
      gl_STDLIB_MODULE_INDICATOR([realloc-posix])
      gl_gnulib_enabled_61bcaca76b3e6f9ae55d57a1c3193bc4=true
      if test $REPLACE_REALLOC_FOR_REALLOC_POSIX = 1; then
        func_gl_gnulib_m4code_ef455225c00f5049c808c2eda3e76866
      fi
      if test $REPLACE_REALLOC_FOR_REALLOC_POSIX = 1; then
        func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec
      fi
    fi
  }
  func_gl_gnulib_m4code_6099e9737f757db36c47fa9d9f02e88c ()
@ -987,12 +941,6 @@ AC_DEFUN([gl_INIT],
      gl_gnulib_enabled_verify=true
    fi
  }
  func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec ()
  {
    if $gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec; then :; else
      gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec=true
    fi
  }
  if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then
    func_gl_gnulib_m4code_925677f0343de64b89a9f0c790b4104c
  fi
@ -1053,9 +1001,6 @@ AC_DEFUN([gl_INIT],
  if $GL_GENERATE_IEEE754_H; then
    func_gl_gnulib_m4code_endian
  fi
  if test $REPLACE_MKTIME = 1; then
    func_gl_gnulib_m4code_verify
  fi
  if test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1; then
    func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b
  fi
@ -1065,6 +1010,9 @@ AC_DEFUN([gl_INIT],
  if test $ac_use_included_regex = yes; then
    func_gl_gnulib_m4code_fd38c7e463b54744b77b98aeafb4fa7c
  fi
  if test $ac_use_included_regex = yes; then
    func_gl_gnulib_m4code_e80bf6f757095d2e5fc94dafb8f8fc8b
  fi
  if test $ac_use_included_regex = yes; then
    func_gl_gnulib_m4code_verify
  fi
@ -1099,18 +1047,15 @@ AC_DEFUN([gl_INIT],
  AM_CONDITIONAL([gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1], [$gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_lchmod], [$gl_gnulib_enabled_lchmod])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_e80bf6f757095d2e5fc94dafb8f8fc8b], [$gl_gnulib_enabled_e80bf6f757095d2e5fc94dafb8f8fc8b])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_ef455225c00f5049c808c2eda3e76866], [$gl_gnulib_enabled_ef455225c00f5049c808c2eda3e76866])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31], [$gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_open], [$gl_gnulib_enabled_open])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_03e0aaad4cb89ca757653bd367a6ccb7], [$gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_rawmemchr], [$gl_gnulib_enabled_rawmemchr])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_d3b2383720ee0e541357aa2aac598e2b], [$gl_gnulib_enabled_d3b2383720ee0e541357aa2aac598e2b])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_61bcaca76b3e6f9ae55d57a1c3193bc4], [$gl_gnulib_enabled_61bcaca76b3e6f9ae55d57a1c3193bc4])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c], [$gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_strtoll], [$gl_gnulib_enabled_strtoll])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_utimens], [$gl_gnulib_enabled_utimens])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_verify], [$gl_gnulib_enabled_verify])
  AM_CONDITIONAL([gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec], [$gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec])
  # End of code from modules
  m4_ifval(gl_LIBSOURCES_LIST, [
    m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
@ -1468,6 +1413,7 @@ AC_DEFUN([gl_FILE_LIST], [
  lib/stdio-read.c
  lib/stdio-write.c
  lib/stdio.in.h
  lib/stdlib.c
  lib/stdlib.in.h
  lib/stpcpy.c
  lib/str-two-way.h
@ -1506,7 +1452,6 @@ AC_DEFUN([gl_FILE_LIST], [
  lib/verify.h
  lib/vla.h
  lib/warn-on-use.h
  lib/xalloc-oversized.h
  m4/00gnulib.m4
  m4/__inline.m4
  m4/absolute-header.m4
@ -1525,7 +1470,6 @@ AC_DEFUN([gl_FILE_LIST], [
  m4/dirfd.m4
  m4/double-slash-root.m4
  m4/dup2.m4
  m4/eealloc.m4
  m4/endian_h.m4
  m4/environ.m4
  m4/errno_h.m4
@ -1605,6 +1549,7 @@ AC_DEFUN([gl_FILE_LIST], [
  m4/readutmp.m4
  m4/realloc.m4
  m4/regex.m4
  m4/selinux-selinux-h.m4
  m4/sha1.m4
  m4/sha256.m4
  m4/sha512.m4
--- a/m4/group-member.m4
+++ b/m4/group-member.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 1999-2001, 2003-2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Written by Jim Meyering
--- a/m4/ieee754-h.m4
+++ b/m4/ieee754-h.m4
@ -4,6 +4,7 @@ dnl Copyright 2018-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Configure ieee754-h module
--- a/m4/include_next.m4
+++ b/m4/include_next.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Paul Eggert and Derek Price.
--- a/m4/inttypes.m4
+++ b/m4/inttypes.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Derek Price, Bruno Haible.
 dnl Test whether <inttypes.h> is supported or must be substituted.
--- a/m4/largefile.m4
+++ b/m4/largefile.m4
@ -4,6 +4,7 @@ dnl Copyright 1992-1996, 1998-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # Enable large files on systems where this is not the default.
 # Enable support for files on Linux file systems with 64-bit inode numbers.
@ -294,7 +295,7 @@ AC_CONFIG_COMMANDS_PRE([_AC_SYS_YEAR2038_ENABLE])])
 # By default, many hosts won't let programs access large files;
 # one must use special compiler options to get large-file access to work.
 # For more details about this brain damage please see:
-# http://www.unix.org/version2/whatsnew/lfs20mar.html
+# https://www.unix.org/version2/whatsnew/lfs20mar.html
 # Additionally, on Linux file systems with 64-bit inodes a file that happens
 # to have a 64-bit inode number cannot be accessed by 32-bit applications on
 # Linux x86/x86_64.  This can occur with file systems such as XFS and NFS.
--- a/m4/lchmod.m4
+++ b/m4/lchmod.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2005-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Paul Eggert.
 dnl Provide a replacement for lchmod on hosts that lack a working version.
--- a/m4/libgmp.m4
+++ b/m4/libgmp.m4
@ -5,6 +5,7 @@ dnl Copyright 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl gl_LIBGMP
 dnl Search for an installed libgmp.
--- a/m4/limits-h.m4
+++ b/m4/limits-h.m4
@ -4,6 +4,7 @@ dnl Copyright 2016-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Check whether limits.h has needed features.
--- a/m4/locale-en.m4
+++ b/m4/locale-en.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2003-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Bruno Haible.
--- a/m4/lstat.m4
+++ b/m4/lstat.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 1997-2001, 2003-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Jim Meyering.
--- a/m4/malloc.m4
+++ b/m4/malloc.m4
@ -1,12 +1,24 @@
 # malloc.m4
-# serial 34
+# serial 43
 dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
-# This is adapted with modifications from upstream Autoconf here:
+m4_version_prereq([2.73], [], [
-# https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=v2.70#n949
+# Modules that use this macro directly or indirectly should depend
 # on extensions-aix, so that _LINUX_SOURCE_COMPAT gets defined
 # before this macro gets invoked.  This helps on AIX 7.2 and earlier
 # if !(__VEC__ || __AIXVEC), and doesn't hurt otherwise.
 #
 # This is copied from upstream Autoconf here:
 # https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=1f38316f6af7bf63e5e7dd187ff6456e07ad743e#n971
 # _AC_FUNC_MALLOC_IF(IF-WORKS, IF-NOT[, UNKNOWN-ASSUME])
 # ------------------------------------------------------
 # If 'malloc (0)' returns nonnull, run IF-WORKS, otherwise, IF-NOT.
 # If it is not known whether it works, assume the shell word UNKNOWN-ASSUME,
 # which should end in "yes" or in something else (the latter is the default).
 AC_DEFUN([_AC_FUNC_MALLOC_IF],
 [
  AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
@ -15,61 +27,81 @@ AC_DEFUN([_AC_FUNC_MALLOC_IF],
    [AC_RUN_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <stdlib.h>
-          ]],
+            /* Use pmalloc to test; 'volatile' prevents the compiler
-          [[void *p = malloc (0);
+               from optimizing the malloc call away.  */
-            void * volatile vp = p;
+            void *(*volatile pmalloc) (size_t) = malloc;]],
-            int result = !vp;
+          [[void *p = pmalloc (0);
            int result = !p;
            free (p);
-            return result;]])
+            return result;]])],
       ],
       [ac_cv_func_malloc_0_nonnull=yes],
       [ac_cv_func_malloc_0_nonnull=no],
-       [case "$host_os" in
+       [AS_CASE([$host_os],
-          # Guess yes on platforms where we know the result.
+          [# Guess yes on platforms where we know the result.
           *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
           | gnu* | *-musl* | midipix* | midnightbsd* \
-          | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
+           | hpux* | solaris* | cygwin* | mingw* | windows* | msys*],
-            ac_cv_func_malloc_0_nonnull="guessing yes" ;;
+            [ac_cv_func_malloc_0_nonnull="guessing yes"],
-          # If we don't know, obey --enable-cross-guesses.
+          [# Guess as follows if we don't know.
-          *) ac_cv_func_malloc_0_nonnull="$gl_cross_guess_normal" ;;
+           ac_cv_func_malloc_0_nonnull=m4_default([$3], ["guessing no"])])])])
        esac
       ])
    ])
  AS_CASE([$ac_cv_func_malloc_0_nonnull], [*yes], [$1], [$2])
 ])# _AC_FUNC_MALLOC_IF
 ])
 # gl_FUNC_MALLOC_0_NONNULL
 # ------------------------
 # If 'malloc (0)' returns nonnull define HAVE_MALLOC_0_NONNULL.
 # Also, set ac_cv_func_malloc_0_nonnull to a string that ends in
 # "yes", otherwise set it to something else.  If unknown whether
 # malloc (0) works, guess as normal for cross-builds.
 AC_DEFUN([gl_FUNC_MALLOC_0_NONNULL],
 [
  _AC_FUNC_MALLOC_IF(
    [AC_DEFINE([HAVE_MALLOC_0_NONNULL], [1],
       [Define to 1 if malloc (0) returns nonnull.])],
    [],
    ["$gl_cross_guess_normal"])
 ])
 # gl_FUNC_MALLOC_GNU
 # ------------------
-# Replace malloc if it is not compatible with GNU libc.
+# Test whether malloc (0) is compatible with GNU libc.
 # Replace malloc if not.
 # Define HAVE_MALLOC_0_NONNULL if malloc (0) returns nonnull (except upon
 # out-of-memory).
 # Define HAVE_MALLOC_PTRDIFF if malloc (N) reliably fails when N exceeds
 # PTRDIFF_MAX.
 AC_DEFUN([gl_FUNC_MALLOC_GNU],
 [
  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
  AC_REQUIRE([gl_FUNC_MALLOC_POSIX])
  AC_REQUIRE([gl_FUNC_MALLOC_0_NONNULL])
-  dnl Through the dependency on module extensions-aix, _LINUX_SOURCE_COMPAT
+  AS_CASE([$ac_cv_func_malloc_0_nonnull],
-  dnl gets defined already before this macro gets invoked.  This helps
+    [*yes],
-  dnl if !(__VEC__ || __AIXVEC), and doesn't hurt otherwise.
+      [REPLACE_MALLOC_FOR_MALLOC_GNU=$REPLACE_MALLOC_FOR_MALLOC_POSIX],
-
+    [REPLACE_MALLOC_FOR_MALLOC_GNU=1])
  REPLACE_MALLOC_FOR_MALLOC_GNU="$REPLACE_MALLOC_FOR_MALLOC_POSIX"
  if test $REPLACE_MALLOC_FOR_MALLOC_GNU = 0; then
    _AC_FUNC_MALLOC_IF([], [REPLACE_MALLOC_FOR_MALLOC_GNU=1])
  fi
 ])
 # gl_FUNC_MALLOC_PTRDIFF
 # ----------------------
-# Test whether malloc (N) reliably fails when N exceeds PTRDIFF_MAX,
+# Test whether malloc (N) reliably fails when N exceeds PTRDIFF_MAX.
-# and replace malloc otherwise.
+# Define HAVE_MALLOC_PTRDIFF if yes.
 # Replace malloc if not.
 AC_DEFUN([gl_FUNC_MALLOC_PTRDIFF],
 [
  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
  AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF])
-  test "$gl_cv_malloc_ptrdiff" = yes || REPLACE_MALLOC_FOR_MALLOC_POSIX=1
+  AS_IF([test "$gl_cv_malloc_ptrdiff" = yes],
    [AC_DEFINE([HAVE_MALLOC_PTRDIFF], 1,
       [Define to 1 if malloc-like functions do not allocate objects
        larger than PTRDIFF_MAX bytes.])],
    [REPLACE_MALLOC_FOR_MALLOC_POSIX=1])
 ])
 # Test whether malloc, realloc, calloc refuse to create objects
 # larger than what can be expressed in ptrdiff_t.
-# Set gl_cv_func_malloc_gnu to yes or no accordingly.
+# Set gl_cv_func_malloc_gnu.
 AC_DEFUN([gl_CHECK_MALLOC_PTRDIFF],
 [
  AC_CACHE_CHECK([whether malloc is ptrdiff_t safe],
@ -113,16 +145,19 @@ AC_DEFUN([gl_FUNC_MALLOC_POSIX],
  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
  AC_REQUIRE([gl_FUNC_MALLOC_PTRDIFF])
  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
-  if test "$gl_cv_func_malloc_posix" = yes; then
+  case "$gl_cv_func_malloc_posix" in
    *yes)
      AC_DEFINE([HAVE_MALLOC_POSIX], [1],
        [Define if malloc, realloc, and calloc set errno on allocation failure.])
-  else
+      ;;
    *)
      REPLACE_MALLOC_FOR_MALLOC_POSIX=1
-  fi
+      ;;
  esac
 ])
 # Test whether malloc, realloc, calloc set errno to ENOMEM on failure.
-# Set gl_cv_func_malloc_posix to yes or no accordingly.
+# Set gl_cv_func_malloc_posix to *yes or *no accordingly.
 AC_DEFUN([gl_CHECK_MALLOC_POSIX],
 [
  AC_REQUIRE([AC_CANONICAL_HOST])
@ -133,10 +168,24 @@ AC_DEFUN([gl_CHECK_MALLOC_POSIX],
      dnl some systems go to their knees when you do that. So assume that
      dnl all Unix implementations of the function set errno on failure,
      dnl except on those platforms where we have seen 'test-malloc-gnu',
-      dnl 'test-realloc-gnu', 'test-calloc-gnu' fail.
+      dnl 'test-realloc-posix', 'test-calloc-gnu' fail.
      case "$host_os" in
        mingw* | windows*)
-          gl_cv_func_malloc_posix=no ;;
+          dnl Old MSVCRT from 2001 did not set errno=ENOMEM when malloc failed.
          dnl More recent MSVCRT from 2019 does so.
          dnl UCRT is the successor of MSVCRT. Assume that UCRT does so as well.
          AC_COMPILE_IFELSE(
            [AC_LANG_PROGRAM(
              [[#include <stdio.h>
                #ifndef _UCRT
                msvcrt yuck
                #endif
              ]],
              [[]])
            ],
            [gl_cv_func_malloc_posix="guessing yes"],
            [gl_cv_func_malloc_posix="guessing no"])
          ;;
        irix* | solaris*)
          dnl On IRIX 6.5, the three functions return NULL with errno unset
          dnl when the argument is larger than PTRDIFF_MAX.
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@ -1,9 +1,10 @@
 # manywarnings.m4
-# serial 27
+# serial 28
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl From Simon Josefsson
@ -185,6 +186,9 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
    esac
  fi
  # These options are not supported by gcc, but are useful with clang.
  AS_VAR_APPEND([$1], [' -Wthread-safety'])
  # Disable specific options as needed.
  if test "$gl_cv_cc_nomfi_needed" = yes; then
    AS_VAR_APPEND([$1], [' -Wno-missing-field-initializers'])
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2000-2002, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 # From Paul Eggert.
--- a/m4/md5.m4
+++ b/m4/md5.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_MD5],
 [
--- a/m4/memmem.m4
+++ b/m4/memmem.m4
@ -4,6 +4,7 @@ dnl Copyright (C) 2002-2004, 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 dnl Check that memmem is present and functional.
 AC_DEFUN([gl_FUNC_MEMMEM_SIMPLE],
--- a/m4/mempcpy.m4
+++ b/m4/mempcpy.m4
@ -5,6 +5,7 @@ dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_MEMPCPY],
 [
--- a/m4/memrchr.m4
+++ b/m4/memrchr.m4
@ -5,6 +5,7 @@ dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl This file is offered as-is, without any warranty.
 AC_DEFUN([gl_FUNC_MEMRCHR],
 [
--- a/Show more
+++ b/Show more